As an additional cost to cast this spell, sacrifice a creature.
You gain life equal to the sacrificed creature's toughness. Destroy target creature an opponent controls.

Shake the Foundations deals 1 damage to each creature without flying.
Draw a card.

Enchant creature
Enchanted creature has indestructible.
Whenever a creature enters the battlefield, you may attach Shielded by Faith to that creature.

Each player may put an artifact, creature, enchantment, or land card from their hand onto the battlefield.

Delve (Each card you exile from your graveyard while casting this spell pays for .)
When Sibsig Muckdraggers enters the battlefield, return target creature card from your graveyard to your hand.

, Pay 1 life, Mill a card, Discard a card, Sacrifice Sinister Concoction: Destroy target creature.

When Smoldering Werewolf enters the battlefield, it deals 1 damage to each of up to two target creatures.
: Transform Smoldering Werewolf.

Vigilance
: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.
, Exile Soul of Theros from your graveyard: Creatures you control get +2/+2 and gain first strike and lifelink until end of turn.

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)
Menace

[+2]: Untap up to one target artifact or creature.
[−3]: You gain 2 life and draw two cards.
[−9]: Take an extra turn after this one.

Return target creature to its owner's hand. If you control an artifact, draw a card.

Deathtouch
, Reveal Tetzimoc, Primal Death from your hand: Put a prey counter on target creature. Activate this ability only during your turn.
When Tetzimoc enters the battlefield, destroy each creature your opponents control with a prey counter on it.

As long as you control a Tezzeret planeswalker, Tezzeret's Strider has menace. (It can't be blocked except by two or more creatures.)

[+1]: Draw a card.
[0]: Until your next turn, target artifact you control becomes a 5/5 creature in addition to its other types.
[−7]: Put any number of cards from your hand onto the battlefield face down. They're 5/5 artifact creatures.

Choose one —
• Look at the top X cards of your library. Put up to two of them into your hand and the rest on the bottom of your library in a random order.
• Counter target spell unless its controller pays twice .

Indestructible
As long as your devotion to blue is less than five, Thassa isn't a creature.
At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control.
: Tap another target creature.

Enchant creature
Enchanted creature gets +0/+2 and assigns combat damage equal to its toughness rather than its power.
Totem armor (If enchanted creature would be destroyed, instead remove all damage from it and destroy this Aura.)

Domain — Tribal Flames deals X damage to any target, where X is the number of basic land types among lands you control.

As True-Name Nemesis enters the battlefield, choose a player.
True-Name Nemesis has protection from the chosen player. (This creature can't be blocked, targeted, dealt damage, or enchanted by anything controlled by that player.)

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying, first strike
Whenever this creature mutates, you may cast target noncreature card with converted mana cost 3 or less from your graveyard without paying its mana cost.