Rout

You may cast Rout as though it had flash if you pay more to cast it. (You may cast it any time you could cast an instant.)
Destroy all creatures. They can’t be regenerated.

Gruul Turf

Gruul Turf enters tapped.
When Gruul Turf enters, return a land you control to its owner’s hand.
: Add .

Bloodforged Battle-Axe

Equipped creature gets +2/+0.
Whenever equipped creature deals combat damage to a player, create a token that’s a copy of Bloodforged Battle-Axe.
Equip

Pithing Needle

As Pithing Needle enters, choose a card name.
Activated abilities of sources with the chosen name can’t be activated unless they’re mana abilities.

Bloodforged Battle-Axe

Equipped creature gets +2/+0.
Whenever equipped creature deals combat damage to a player, create a token that’s a copy of Bloodforged Battle-Axe.
Equip

Pithing Needle

As Pithing Needle enters, choose a card name.
Activated abilities of sources with the chosen name can’t be activated unless they’re mana abilities.

Gruul Turf

Gruul Turf enters tapped.
When Gruul Turf enters, return a land you control to its owner’s hand.
: Add .

Quicksilver Dragon

Flying
: If target spell has only one target and that target is Quicksilver Dragon, change that spell’s target to another creature.
Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Bone Shredder

Flying
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.)
When Bone Shredder enters, destroy target nonartifact, nonblack creature.

Aura Shards

Whenever a creature you control enters, you may destroy target artifact or enchantment.

Bone Shredder

Flying
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.)
When Bone Shredder enters, destroy target nonartifact, nonblack creature.

Crookclaw Transmuter

Flash
Flying
When Crookclaw Transmuter enters, switch target creature’s power and toughness until end of turn.

Sporesower Thallid

At the beginning of your upkeep, put a spore counter on each Fungus you control.
Remove three spore counters from Sporesower Thallid: Create a 1/1 green Saproling creature token.

Strength in Numbers

Until end of turn, target creature gains trample and gets +X/+X, where X is the number of attacking creatures.

Sidewinder Sliver

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

Chatter of the Squirrel

Create a 1/1 green Squirrel creature token.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Planar Chaos

At the beginning of your upkeep, flip a coin. If you lose the flip, sacrifice Planar Chaos.
Whenever a player casts a spell, that player flips a coin. If they lose the flip, counter that spell.

Warp World

Each player shuffles all permanents they own into their library, then reveals that many cards from the top of their library. Each player puts all artifact, creature, and land cards revealed this way onto the battlefield, then does the same for enchantment cards, then puts all cards revealed this way that weren’t put onto the battlefield on the bottom of their library.

Krark’s Thumb

If you would flip a coin, instead flip two coins and ignore one.