#Test:Abyssal Nocturnus.
#Whenever an opponent discards a card, Abyssal Nocturnus gets +2/+2 and gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)
[INIT]
FIRSTMAIN
[PLAYER1]
hand:Mind Knives
inplay:Abyssal Nocturnus
manapool:{1}{B}
[PLAYER2]
hand:Giant Growth
life:20
[DO]
Mind Knives
p2
next
#begin
next
#attackers
Abyssal Nocturnus
next
#blockers
next
#damage
next
#end combat
[ASSERT]
COMBATEND
[PLAYER1]
inplay:Abyssal Nocturnus
graveyard:Mind Knives
[PLAYER2]
life:16
graveyard:Giant Growth
[END]