Suth'ryhl, the Dreamtide

Delirium —Suth'ryhl, the Dreamtide has indestructible as long as there are four or more card types among cards in your graveyard.

At the beginning of each players end step, that player discards a card unless they pay 2 life.

Each Demon, Horror and Nightmare creature card you own that isn't on the battlefield has madness.
The madness cost is equal to its mana cost reduced
by {2}.