#Testing Ageless Entity and @LIFED trigger.
#Whenever you gain life, put that many +1/+1 counters on Ageless Entity.
[INIT]
FIRSTMAIN
[PLAYER1]
hand:Sacred Nectar
inplay:Ageless Entity
manapool:{1}{W}
life:20
[PLAYER2]
life:20
[DO]
Sacred Nectar
next
#combatbegins
next
#attackers
Ageless Entity
next
#blockers
next
#combatdamage
next
#combatend
[ASSERT]
COMBATEND
[PLAYER1]
inplay:Ageless Entity
graveyard:Sacred Nectar
manapool:{0}
life:24
[PLAYER2]
life:12
[END]