As an additional cost to cast this spell, sacrifice a creature.
Fling deals damage equal to the sacrificed creature's power to any target.

Enchant creature
When this Aura enters, it deals 2 damage to enchanted creature.
At the beginning of your upkeep, this Aura deals 4 damage to enchanted creature.

Create two 1/1 red Goblin creature tokens.

+1: Until end of turn, Gideon becomes a 5/5 Human Soldier Ally creature with indestructible that's still a planeswalker. Prevent all damage that would be dealt to him this turn.
0: Create a 2/2 white Knight Ally creature token.
−4: You get an emblem with "Creatures you control get +1/+1."

When this creature enters, put a +1/+1 counter on each of up to two target creatures.

Lifelink
Noncreature spells your opponents cast cost more to cast.

As an additional cost to cast this spell, sacrifice a creature or discard a card.
Destroy target creature or planeswalker.

This land enters tapped.
When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
: Add or .

(: Add .)

Flying
Whenever this creature attacks, another target attacking creature gains flying until end of turn.
Equip abilities you activate that target this creature cost less to activate.

(: Add .)

: Create a 1/1 colorless Gnome artifact creature token.

Whenever you cast a modal spell, choose up to X, where X is the number of times you chose a mode for that spell —
• Exile the top card of your library. Until the end of your next turn, you may play it.
• Put a +1/+1 counter on Riku. It gains trample until end of turn.
• Create a 1/1 blue Bird creature token with flying.

Whenever another nontoken creature you control enters, untap Arni.
: Draw a card, then discard a card.

Rhystic Lightning deals 4 damage to any target unless that permanent's controller or that player pays . If they do, Rhystic Lightning deals 2 damage to the permanent or player.

At the beginning of your upkeep, target opponent mills three cards, then you draw a card for each land card put into their graveyard this way.

Choose three. You may choose the same mode more than once.
• You draw a card and you lose 1 life.
• Riveteers Confluence deals 1 damage to each creature and planeswalker you don't control.
• You may put a land card from your hand or graveyard onto the battlefield tapped.

Enchant your library
Enchanted library is an artifact creature on the battlefield with power and toughness each equal to the number of cards in it. It's still a library.
If enchanted library would leave the battlefield, exile this Aura instead.

Return target creature to its owner's hand. Then that creature's controller may pay . If the player does, they may copy this spell and may choose a new target for that copy.

Prototype — 2/3 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.)
, Sacrifice this creature: Create an X/X colorless Golem artifact creature token, where X is three times this creature's power. It gains haste until end of turn. Activate only as a sorcery.