Bryozoan Collective

Defender. At the beginning of your upkeep, put a +1/+1 counter on Bryozoan Collective. If there are three or more +1/+1 counters on it, you may remove all of them to create a 1/1 blue Bryozoan creature token with flying and lifelink.
The bryozoan colony is a complex network of tiny organisms, each working together to create a single, powerful collective.