1) Optimized the code of 38 cards based on rev2262.

Cards with FLASHBACK are finally 100%. Here is one example to see the changes:

OLD:

[card]
name=Lava Dart
auto=damage:1 target(creature,player)
autograveyard={S(mountain|mybattlefield)}:copy(this) && moveTo(mystack)
text=Lava Dart deals 1 damage to target creature. -- Flashback - Sacrifice a Mountain. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
mana={R}
type=Instant
[/card]


NEW:

[card]
name=Lava Dart
target=creature,player
auto=damage:1
flashback={S(mountain|mybattlefield)}
text=Lava Dart deals 1 damage to target creature. -- Flashback - Sacrifice a Mountain. (You may cast this card from your graveyard for its flashback cost. Then exile it.)
mana={R}
type=Instant
[/card]


2)Added 21 successfully tested cards based on rev2262. Most of these cards have BUYBACK.


Tests for both keywords will follow in one of the next revisions.

projects/mtg/bin/Res/sets/mtg_todo.dat

@@ -554,12 +554,6 @@ mana={4}{G}
 type=Sorcery
 [/card]
 [card]
-name=Allay
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Destroy target enchantment.
-mana={1}{W}
-type=Instant
-[/card]
-[card]
 name=Alley Grifters
 text=Whenever Alley Grifters becomes blocked, defending player discards a card.
 mana={1}{B}{B}
@@ -841,12 +835,6 @@ mana={4}{G}
 type=Sorcery
 [/card]
 [card]
-name=Anoint
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Prevent the next 3 damage that would be dealt to target creature this turn.
-mana={W}
-type=Instant
-[/card]
-[card]
 name=Anowon, the Ruin Sage
 text=At the beginning of your upkeep, each player sacrifices a non-Vampire creature.
 mana={3}{B}{B}
@@ -4105,12 +4093,6 @@ power=6
 toughness=4
 [/card]
 [card]
-name=Capsize
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Return target permanent to its owner's hand.
-mana={1}{U}{U}
-type=Instant
-[/card]
-[card]
 name=Captain's Maneuver
 text=The next X damage that would be dealt to target creature or player this turn is dealt to another target creature or player instead.
 mana={X}{R}{W}
@@ -4633,7 +4615,6 @@ loyalty=6
 [/card]
 [card]
 name=Chandra's Spitfire
-abilities=flying
 text=Flying -- Whenever an opponent is dealt noncombat damage, Chandra's Spitfire gets +3/+0 until end of turn.
 mana={2}{R}
 type=Creature
@@ -4642,12 +4623,6 @@ power=1
 toughness=3
 [/card]
 [card]
-name=Change of Heart
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Target creature can't attack this turn.
-mana={W}
-type=Instant
-[/card]
-[card]
 name=Changeling Berserker
 text=Changeling (This card is every creature type at all times.) -- Haste -- Champion a creature (When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield.)
 mana={3}{R}
@@ -5569,12 +5544,6 @@ mana={3}{B}{B}
 type=Enchantment
 [/card]
 [card]
-name=Constant Mists
-text=Buyback - Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) -- Prevent all combat damage that would be dealt this turn.
-mana={1}{G}
-type=Instant
-[/card]
-[card]
 name=Consult the Necrosages
 text=Choose one - Target player draws two cards; or target player discards two cards.
 mana={1}{U}{B}
@@ -7897,12 +7866,6 @@ mana={X}{U}{U}{U}
 type=Sorcery
 [/card]
 [card]
-name=Disturbed Burial
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Return target creature card from your graveyard to your hand.
-mana={1}{B}
-type=Sorcery
-[/card]
-[card]
 name=Disturbing Plot
 text=Return target creature card in a graveyard to its owner's hand. -- Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)
 mana={1}{B}
@@ -9105,12 +9068,6 @@ power=0
 toughness=2
 [/card]
 [card]
-name=Elvish Fury
-text=Buyback {4} (You may pay an additional {4} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Target creature gets +2/+2 until end of turn.
-mana={G}
-type=Instant
-[/card]
-[card]
 name=Elvish Guidance
 text=Enchant land -- Whenever enchanted land is tapped for mana, its controller adds {G} to his or her mana pool for each Elf on the battlefield (in addition to the mana the land produces).
 mana={2}{G}
@@ -20192,12 +20149,6 @@ mana={1}{U}{B}
 type=Sorcery
 [/card]
 [card]
-name=Mind Games
-text=Buyback {2}{U} (You may pay an additional {2}{U} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Tap target artifact, creature, or land.
-mana={U}
-type=Instant
-[/card]
-[card]
 name=Mind Maggots
 text=When Mind Maggots enters the battlefield, discard any number of creature cards. For each card discarded this way, put two +1/+1 counters on Mind Maggots.
 mana={3}{B}
@@ -23714,12 +23665,6 @@ type=Instant
 subtype=Arcane
 [/card]
 [card]
-name=Pegasus Stampede
-text=Buyback - Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) -- Put a 1/1 white Pegasus creature token with flying onto the battlefield.
-mana={1}{W}
-type=Sorcery
-[/card]
-[card]
 name=Penance
 text=Put a card from your hand on top of your library: The next time a black or red source of your choice would deal damage this turn, prevent that damage.
 mana={2}{W}
@@ -26059,12 +26004,6 @@ mana={3}{G}
 type=Sorcery
 [/card]
 [card]
-name=Reaping the Rewards
-text=Buyback - Sacrifice a land. (You may sacrifice a land in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) -- You gain 2 life.
-mana={W}
-type=Instant
-[/card]
-[card]
 name=Rebel Informer
 text=Rebel Informer can't be the target of white spells or abilities from white sources. -- {3}: Put target Rebel on the bottom of its owner's library.
 mana={2}{B}
@@ -26138,12 +26077,6 @@ mana={W}
 type=Instant
 [/card]
 [card]
-name=Reckless Charge
-text=Target creature gets +3/+0 and gains haste until end of turn. -- Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
-mana={R}
-type=Sorcery
-[/card]
-[card]
 name=Reckless Embermage
 text={1}{R}: Reckless Embermage deals 1 damage to target creature or player and 1 damage to itself.
 mana={3}{R}
@@ -28720,12 +28653,6 @@ power=2
 toughness=2
 [/card]
 [card]
-name=Searing Touch
-text=Buyback {4} (You may pay an additional {4} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Searing Touch deals 1 damage to target creature or player.
-mana={R}
-type=Instant
-[/card]
-[card]
 name=Seasinger
 text=When you control no Islands, sacrifice Seasinger. -- You may choose not to untap Seasinger during your untap step. -- {T}: Gain control of target creature whose controller controls an Island for as long as you control Seasinger and Seasinger remains tapped.
 mana={1}{U}{U}
@@ -28864,12 +28791,6 @@ mana={2}{U}{B}
 type=Enchantment
 [/card]
 [card]
-name=Seething Anger
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Target creature gets +3/+0 until end of turn.
-mana={R}
-type=Sorcery
-[/card]
-[card]
 name=Segmented Wurm
 text=Whenever Segmented Wurm becomes the target of a spell or ability, put a -1/-1 counter on it.
 mana={3}{R}{G}
@@ -29360,12 +29281,6 @@ mana={X}{B}{B}
 type=Sorcery
 [/card]
 [card]
-name=Shattering Pulse
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Destroy target artifact.
-mana={1}{R}
-type=Instant
-[/card]
-[card]
 name=Shattering Spree
 text=Replicate {R} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.) -- Destroy target artifact.
 mana={R}
@@ -30343,12 +30258,6 @@ power=3
 toughness=3
 [/card]
 [card]
-name=Slaughter
-text=Buyback - Pay 4 life. (You may pay 4 life in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) -- Destroy target nonblack creature. It can't be regenerated.
-mana={2}{B}{B}
-type=Instant
-[/card]
-[card]
 name=Slaughter Pact
 text=Slaughter Pact is black. -- Destroy target nonblack creature. -- At the beginning of your next upkeep, pay {2}{B}. If you don't, you lose the game.
 mana={0}
@@ -32801,12 +32710,6 @@ power=2
 toughness=2
 [/card]
 [card]
-name=Sylvan Might
-text=Target creature gets +2/+2 and gains trample until end of turn. -- Flashback {2}{G}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
-mana={1}{G}
-type=Instant
-[/card]
-[card]
 name=Sylvan Paradise
 text=Any number of target creatures become green until end of turn.
 mana={G}
@@ -34492,12 +34395,6 @@ mana={1}{U}
 type=Sorcery
 [/card]
 [card]
-name=Traitor's Clutch
-text=Target creature gets +1/+0, becomes black, and gains shadow until end of turn. (It can block or be blocked by only creatures with shadow.) -- Flashback {1}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
-mana={4}{B}
-type=Instant
-[/card]
-[card]
 name=Traitor's Roar
 text=Tap target untapped creature. It deals damage equal to its power to its controller. -- Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)
 mana={4}{BR}
@@ -35639,12 +35536,6 @@ mana={4}{G}
 type=Enchantment
 [/card]
 [card]
-name=Verdant Touch
-text=Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) -- Target land becomes a 2/2 creature that's still a land. (This effect lasts indefinitely.)
-mana={1}{G}
-type=Sorcery
-[/card]
-[card]
 name=Verdeloth the Ancient
 kicker={X}
 auto=lord(treefolk) 1/1 other