Spooky20

Dr. Julius Jumblemorph is every creature type (even if this card isn't on the battlefield). Whenever a host you control enters, you may search your...

When this creature enters, choose beginning phase, first main phase, combat phase, postcombat main phase, or ending phase. Steal that phase from ta...

Protection from artifacts

Echo {2}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay ...

Destroy target creature with flying.

When you cast a creature spell, sacrifice this creature.

All Sliver creatures have flanking. (Whenever a creature without flanking blocks a Sliver, the blocking creature gets -1/-1 until end of turn.)

Search your library for a basic land card, put it onto the battlefield, then shuffle. Suspend 2—{G} (Rather than cast this card from your hand, you...

Flash Flying, protection from blue Return a Forest you control to its owner's hand: Untap target creature. Activate only once each turn.

This creature enters tapped.

At the beginning of your upkeep, put a spore counter on this creature. Remove three spore counters from this creature: Create a 1/1 green Saproling...

As this artifact enters, choose white Citizen, blue Camarid, black Thrull, red Goblin, or green Saproling. {3}, {T}: Create a 1/1 creature token of...

{T}: Add {C}. {1}, {T}: Put a storage counter on this land. {1}, Remove X storage counters from this land: Add X mana in any combination of {G} and...

Flying When this creature enters, return target permanent to its owner's hand. Suspend 3—{1}{U} (Rather than cast this card from your hand, you may...

Suspend 6—{W} Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, the...

All Slivers have "{T}: This permanent deals 1 damage to target attacking or blocking creature."

Target player reveals their hand and the top card of their library. You choose a card revealed this way. That player puts the chosen card on the bo...

All Sliver creatures have "{T}: This creature deals 2 damage to any target and 3 damage to itself."

{T}: Add {C}. {1}, {T}: Add one mana of any color.

Whenever another creature you control enters, that creature gets +3/+3 until end of turn.

Destroy target nonblack creature that entered since your last turn ended.

Destroy target artifact or land. Suspend 4—{1}{R} (Rather than cast this card from your hand, you may pay {1}{R} and exile it with four time counte...

Flash (You may cast this spell any time you could cast an instant.) Flying If a spell would deal damage to a permanent or player, prevent 1 damage ...

All Slivers have "At the beginning of your upkeep, this permanent deals 1 damage to you."