Yuka the elf king

Lifelink
Whenever you gain 2 or more life create a 1/1 green white elf creature token with lifelink, the first time
this ability activates put X +1/+1 counters on
yuka the elf king x being the number of elfs you control
{2}{b}{t} sacrifice 2 elf creatures: put a +1/+1
counter on each other creature you control
{3}{g}{w}{t} sacrifice 2 elf creatures: destroy target artifact or enchantment you gain life equally
to half it's mana value