1) Removed all "{0}" from the upcost bracket of all cards with Echo. Once it was needed to work around a bug, but now that the bug is fixed.

2) Updated all {X}-spells with x targets. They are using "prex" instead of "x" now. Their code is now completely   
following the official rules.

3) Changed the code of most cards which search your library for a land card and put it onto the battlefield tapped.
They are using "and((tap))" now. More cards will be changed to that in upcoming revisions.

4) Added 2 tests to save "prex".

projects/mtg/bin/Res/test/Distorting_Wake2.txt

@@ -0,0 +1,23 @@
+#Testing Distorting Wake (X = 3).
+#Test 2: You should not be able to return only 2 permanents if x = 3.
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+inplay:Mox Pearl,Ornithopter,Grizzly Bears
+hand:Distorting Wake
+manapool:{3}{U}{U}{U}
+[PLAYER2]
+[DO]
+Distorting Wake
+choice 0
+Mox Pearl
+Ornithopter
+next
+[ASSERT]
+BEGINOFCOMBAT
+[PLAYER1]
+inplay:Mox Pearl,Ornithopter,Grizzly Bears
+hand:Distorting Wake
+manapool:{3}{U}{U}{U}
+[PLAYER2]
+[END]