Fixed bug with preventing Melira from putting +1/+1 counters on creatures you control

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

@@ -233,6 +233,7 @@ control_magic3.txt
 control_magic4.txt
 corrupt.txt
 counsel_of_the_soratami.txt
+countershroud.txt
 counterspell.txt
 counterspell2.txt
 counterspell3.txt

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

@@ -0,0 +1,36 @@
+# Testing Melira, Sylvok Outcast (keyword "countershroud")
+
+# Melira, Sylvok Outcast
+# id=194274
+# 2/2
+# You can't get poison counters. Creatures you control can't have -1/-1 counters placed on them. Creatures your opponents control lose infect.
+
+[INIT]
+FIRSTMAIN
+[PLAYER1]
+inplay:194274,grizzly bears,Gavony Township
+manapool:{2}{W}{G}
+[PLAYER2]
+[DO]
+Gavony Township
+choice 1
+next
+#combatbegins
+next
+#attackers
+194274
+grizzly bears
+next
+#blockers
+next
+#combatdamage
+next
+#combatend
+[ASSERT]
+COMBATEND
+[PLAYER1]
+inplay:194274,grizzly bears,Gavony Township
+manapool:{0}
+[PLAYER2]
+life:14
+[END]