Kionora, Elemental shaman

Islandwalk, hexproof
When this creature enters the battlefield and
when you are dealt damage, create X 1/0 blue
elemental creature tokens where X is the
amount of mana spent to cast this card. Than
all of the creatures you control get a +1/+1
counter.
{t}: create a 1/1 blue merfolk creature token with hexproof.