Reef Barrier

Multikicker {1}{u} create a 2/2 blue shark with haste and bloodthrist 1 or a 1/4 blue jellyfish with deathtouch.
Defender, Protection From Red
When Reef Barrier enters the battlefield, create two 1/1 blue squids with islandwalk.
On your upkeep, put a reef counter on Reef Barrier.
Remove two reef counters from Reef Barrier: create a 1/1 blue fish. Put your choose of a flying or a first strike counter on it. Draw a card.
Other Blue creatures have +0/+1 for each reef counter on Reef Barrier.