Counter target spell unless its controller pays .

As long as there are two or more instant and/or sorcery cards in your graveyard, this creature gets +1/+0 and has haste. (It can attack and as soon as it comes under your control.)

As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.

Target creature gets +2/+1 and gains haste until end of turn. Scry 1.

Target attacking creature gets +3/+3 until end of turn. If it's an artifact creature, it gains trample until end of turn.

Until end of turn, whenever a player taps a Swamp for mana, that player adds an additional .

Sacrifice this enchantment: Target creature gets +3/+3 until end of turn.

When this creature enters, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this token: Draw a card.")

Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Target creature gets +2/+2 until end of turn.

Target creature gets +1/+2 and gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Kicker (You may pay an additional as you cast this spell.)
When this creature enters, if it was kicked, creatures you control get +1/+0 and gain haste until end of turn.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Outlast (, : Put a +1/+1 counter on this creature. Outlast only as a sorcery.)

: Creatures you control get +1/+1 and gain vigilance until end of turn. Activate only during your turn. (Attacking doesn't cause them to tap.)

Flying

Target creature becomes red and gains haste until end of turn. (It can attack and this turn.)
Draw a card.

Whenever you cast a creature spell, tap target creature.

Devoid (This card has no color.)
Target creature can't be blocked this turn.
Draw a card.

: Creatures you control get +1/+1 until end of turn.

Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

Mill two cards.
Draw a card.

, , Sacrifice this creature: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

, , Discard a card: Create a 1/1 white Human Soldier creature token.

Target creature gains flying until end of turn.
Draw a card.

Counter target instant or sorcery spell unless its controller pays .
Draw a card.

Enchant creature
Enchanted creature gets -1/-1 and can't block.

Target creature without flying can't block this turn.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Mugging deals 2 damage to target creature. That creature can't block this turn.

Enchant creature
Enchanted creature gets -2/-2.

: You gain 1 life.

Target creature you control gets +2/+0 and gains lifelink until end of turn. When that creature dies this turn, create a 1/1 white Spirit creature token with flying.

Choose one —
• Target creature gains islandwalk until end of turn. (It can't be blocked as long as defending player controls an Island.)
• Target creature gets +2/-1 until end of turn.
• Target player discards a card.

This creature doesn't untap during your untap step.
Whenever you cast a green spell, you may untap this creature.

This artifact enters tapped.
, Sacrifice this artifact: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.

: Target creature gains haste until end of turn. (It can attack and this turn.)

Put a +1/+1 counter on target creature. That creature gains reach until end of turn. (It can block creatures with flying.)