Emrakul, the Promised End

This spell costs less to cast for each card type among cards in your graveyard.
When you cast this spell, you gain control of target opponent during that player’s next turn. After that turn, that player takes an extra turn.
Flying, trample, protection from instants

Reforge the Soul

Each player discards their hand, then draws seven cards.
Miracle (You may cast this card for its miracle cost when you draw it if it’s the first card you drew this turn.)

Rally the Peasants

Creatures you control get +2/+0 until end of turn.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Helvault

, : Exile target creature you control.
, : Exile target creature you don’t control.
When Helvault is put into a graveyard from the battlefield, return all cards exiled with it to the battlefield under their owners’ control.

Emrakul, the Promised End

This spell costs less to cast for each card type among cards in your graveyard.
When you cast this spell, you gain control of target opponent during that player’s next turn. After that turn, that player takes an extra turn.
Flying, trample, protection from instants

Rally the Peasants

Creatures you control get +2/+0 until end of turn.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Heliod, God of the Sun

Indestructible
As long as your devotion to white is less than five, Heliod isn’t a creature. (Each in the mana costs of permanents you control counts toward your devotion to white.)
Other creatures you control have vigilance.
: Create a 2/1 white Cleric enchantment creature token.

Fog

Prevent all combat damage that would be dealt this turn.

Jace, Architect of Thought

+1: Until your next turn, whenever a creature an opponent controls attacks, it gets -1/-0 until end of turn.
−2: Reveal the top three cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other on the bottom of your library in any order.
−8: For each player, search that player’s library for a nonland card and exile it, then that player shuffles. You may cast those cards without paying their mana costs.

Dragonlord Kolaghan

Flying, haste
Other creatures you control have haste.
Whenever an opponent casts a creature or planeswalker spell with the same name as a card in their graveyard, that player loses 10 life.

Ruinous Path

Destroy target creature or planeswalker.
Awaken 4— (If you cast this spell for , also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It’s still a land.)

Balustrade Spy

Flying
When Balustrade Spy enters, target player reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Progenitus

Protection from everything
If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner’s library instead.

Progenitus

Protection from everything
If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner’s library instead.

Steel Hellkite

Flying
: This creature gets +1/+0 until end of turn.
: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by this creature this turn. Activate only once each turn.

Ricochet Trap

If an opponent cast a blue spell this turn, you may pay rather than pay this spell’s mana cost.
Change the target of target spell with a single target.

Kiora, Behemoth Beckoner

Whenever a creature you control with power 4 or greater enters, draw a card.
−1: Untap target permanent.

Molten Birth

Create two 1/1 red Elemental creature tokens, then flip a coin. If you win the flip, return Molten Birth to its owner’s hand.

Eldrazi Conscription

Enchant creature
Enchanted creature gets +10/+10 and has trample and annihilator 2. (Whenever it attacks, defending player sacrifices two permanents of their choice.)

World Breaker

Devoid (This card has no color.)
When you cast this spell, exile target artifact, enchantment, or land.
Reach
, Sacrifice a land: Return World Breaker from your graveyard to your hand. ( represents colorless mana.)

Oblivion Sower

When you cast this spell, target opponent exiles the top four cards of their library, then you may put any number of land cards that player owns from exile onto the battlefield under your control.

Finale of Promise

You may cast up to one target instant card and/or up to one target sorcery card from your graveyard each with mana value X or less without paying their mana costs. If a spell cast this way would be put into your graveyard, exile it instead. If X is 10 or more, copy each of those spells twice. You may choose new targets for the copies.

Oblivion Sower

When you cast this spell, target opponent exiles the top four cards of their library, then you may put any number of land cards that player owns from exile onto the battlefield under your control.

Cold-Eyed Selkie

Islandwalk (This creature can’t be blocked as long as defending player controls an Island.)
Whenever Cold-Eyed Selkie deals combat damage to a player, you may draw that many cards.