The Forgotten

Defender
The Forgotten enters the battlefield with 4 algae counters on it.
{2}{u}{u}: Move an algae counter from The Forgotten to target creature.
Creatures other than The Forgotten with an algae counter on them are Fish creatures with base power and toughness 0/1 and have shroud, and lose all other abilities, card types, and subtypes.
If The Forgotten has no algae counters on it, flip it.