Decanter of Endless Water

You have no maximum hand size.
{T}: Add one mana of any color.

Ogre Taskmaster

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Door to Nothingness

Door to Nothingness enters the battlefield tapped.
{W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, {T}, Sacrifice Door to Nothingness: Target player loses the game.

Yargle, Glutton of Urborg

Might of Oaks

Target creature gets +7/+7 until end of turn.

Raging Goblin

Haste (This creature can attack and {T} as soon as it comes under your control.)

Goblin Balloon Brigade

{R}: Goblin Balloon Brigade gains flying until end of turn.

Jackalope Herd

When you cast a spell, return Jackalope Herd to its owner's hand.

Dead Weight

Enchant creature
Enchanted creature gets -2/-2.

Counterspell

Goblin Grenade

As an additional cost to cast this spell, sacrifice a Goblin.
Goblin Grenade deals 5 damage to any target.

Distress

Target player reveals their hand. You choose a nonland card from it. That player discards that card.

Fodder Cannon

{4}, {T}, Sacrifice a creature: Fodder Cannon deals 4 damage to target creature.

Ib Halfheart, Goblin Tactician

Whenever another Goblin you control becomes blocked, sacrifice it. If you do, it deals 4 damage to each creature blocking it.
Sacrifice two Mountains: Create two 1/1 red Goblin creature tokens.

Mugging

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

Obliterate

This spell can't be countered.
Destroy all artifacts, creatures, and lands. They can't be regenerated.

Wall of Caltrops

Defender (This creature can't attack.)
Whenever Wall of Caltrops blocks a creature, if at least one other Wall creature is blocking that creature and no non-Wall creatures are blocking that creature, Wall of Caltrops gains banding until end of turn. (If any creatures with banding you control are blocking a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by.)

Wave of Indifference

X target creatures can't block this turn.

Carrion Ants

{1}: Carrion Ants gets +1/+1 until end of turn.

Eternal Isolation

Put target creature with power 4 or greater on the bottom of its owner's library.

Research Assistant

{3}{U}, {T}: Draw a card, then discard a card.

Goblin Gardener

When Goblin Gardener dies, destroy target land.

Goblin Arsonist

When Goblin Arsonist dies, you may have it deal 1 damage to any target.

Xanthic Statue

{5}: Until end of turn, Xanthic Statue becomes an 8/8 Golem artifact creature with trample.

Manabarbs

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

Root Greevil

{2}{G}, {T}, Sacrifice Root Greevil: Destroy all enchantments of the color of your choice.

Reparations

Whenever an opponent casts a spell that targets you or a creature you control, you may draw a card.

Mortify

Wild Griffin

Vorthos, Steward of Myth

As Vorthos, Steward of Myth enters the battlefield, choose a named Magic character.
Each spell you cast with the chosen character in its name, flavor text, or art costs {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay.

Tremor

Tremor deals 1 damage to each creature without flying.

Aggravate

Aggravate deals 1 damage to each creature target player controls. Each creature dealt damage this way attacks this turn if able.

Carnival of Souls

Whenever a creature enters the battlefield, you lose 1 life and add {B}.

Turn to Frog

Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Norin the Wary

When a player casts a spell or a creature attacks, exile Norin the Wary. Return it to the battlefield under its owner's control at the beginning of the next end step.

Werebear

{T}: Add {G}.
Threshold — Werebear gets +3/+3 as long as seven or more cards are in your graveyard.

Yargle and Multani

Tidal Surge

Tap up to three target creatures without flying.

Crookshank Kobolds

Squandered Resources

Sacrifice a land: Add one mana of any type the sacrificed land could produce.

Canal Monitor

Gorilla Titan

Trample
Gorilla Titan gets +4/+4 as long as there are no cards in your graveyard.