#Testing Ivy Elemental (example for X-cost spells)
#Ivy Elemental enters the battlefield with X +1/+1 counters on it.
[INIT]
FIRSTMAIN
[PLAYER1]
hand:Ivy Elemental
inplay:fervor
manapool:{G}{G}{G}{G}
[PLAYER2]
[DO]
Ivy Elemental
next
#begin
next
#attackers
Ivy Elemental
next
#blockers
next
#damage
[ASSERT]
COMBATDAMAGE
[PLAYER1]
inplay:Fervor,Ivy Elemental
manapool:{0}
[PLAYER2]
life:17
[END]