Oskar, Rubbish Reclaimer

This spell costs {1} less to cast for each different mana value among cards in your graveyard.
Whenever you discard a nonland card, you may cast it from your graveyard.

Drain Power

Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.

Rootwater Matriarch

{T}: Gain control of target creature for as long as that creature is enchanted.

Rootwater Shaman

You may cast Aura spells with enchant creature as though they had flash.

Ramses Overdark

Army of the Damned

Create thirteen tapped 2/2 black Zombie creature tokens.
Flashback {7}{B}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Shade's Form

Enchant creature
Enchanted creature has "{B}: This creature gets +1/+1 until end of turn."
When enchanted creature dies, return that card to the battlefield under your control.

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

False Demise

Enchant creature
When enchanted creature dies, return that card to the battlefield under your control.

Followed Footsteps

Enchant creature
At the beginning of your upkeep, create a token that's a copy of enchanted creature.