Wave of Vitriol

Each player sacrifices all artifacts, enchantments, and nonbasic lands they control. For each land sacrificed this way, its controller may search their library for a basic land card and put it onto the battlefield tapped. Then each player who searched their library this way shuffles it.

Sylvan Offering

Choose an opponent. You and that player each create an X/X green Treefolk creature token.
Choose an opponent. You and that player each create X 1/1 green Elf Warrior creature tokens.

Fool’s Demise

Enchant creature
When enchanted creature dies, return that card to the battlefield under your control.
When Fool’s Demise is put into a graveyard from the battlefield, return Fool’s Demise to its owner’s hand.

Brion Stoutarm

Lifelink
, , Sacrifice another creature: Brion Stoutarm deals damage equal to the sacrificed creature’s power to target player or planeswalker.

Overbeing of Myth

Overbeing of Myth’s power and toughness are each equal to the number of cards in your hand.
At the beginning of your draw step, draw an additional card.

Ankle Shanker

Haste
Whenever Ankle Shanker attacks, creatures you control gain first strike and deathtouch until end of turn.

War Behemoth

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Barrage of Boulders

Barrage of Boulders deals 1 damage to each creature you don’t control.
Ferocious — If you control a creature with power 4 or greater, creatures can’t block this turn.

Ankle Shanker

Haste
Whenever Ankle Shanker attacks, creatures you control gain first strike and deathtouch until end of turn.

Whiplash Trap

If an opponent had two or more creatures enter the battlefield under their control this turn, you may pay rather than pay this spell’s mana cost.
Return two target creatures to their owners’ hands.

Statute of Denial

Counter target spell. If you control a blue creature, draw a card, then discard a card.

Battle Mastery

Enchant creature
Enchanted creature has double strike. (It deals both first-strike and regular combat damage.)

Seraph of the Masses

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Flying
Seraph of the Masses’s power and toughness are each equal to the number of creatures you control.

Goblin Rabblemaster

Other Goblin creatures you control attack each combat if able.
At the beginning of combat on your turn, create a 1/1 red Goblin creature token with haste.
Whenever Goblin Rabblemaster attacks, it gets +1/+0 until end of turn for each other attacking Goblin.

Decimate

Destroy target artifact, target creature, target enchantment, and target land.

Unquestioned Authority

Enchant creature
When Unquestioned Authority enters the battlefield, draw a card.
Enchanted creature has protection from creatures.

Volcanic Fallout

This spell can’t be countered.
Volcanic Fallout deals 2 damage to each creature and each player.

Impulsive Destruction

Each player may sacrifice an artifact or enchantment. Impulsive Destruction deals 3 damage to each player who didn’t sacrifice a permanent this way.

Archaeomancer

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.