Octophilosopher

Defender, Hexproof
When Octophilosopher enters the battlefield,
you may discard 2 cards to put an Umbra
counter on it.
Whenever Octophilosopher has an Umbra
counter on it or is enchanted; it loses Defender;
it gains +2/-2 and "When this creature damages
an opponent, draw a card then discard a card.
Remove an Umbra counter: Destroy target
Enchantment or draw 2 cards.
"They are the living memory of the sea"