Decanter of Endless Water

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

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Tremor

Tremor deals 1 damage to each creature without flying.

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.)

Goblin Arsonist

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

Fodder Cannon

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

Vorthos, Steward of Myth

As Vorthos, Steward of Myth enters, 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.

Crookshank Kobolds

Obliterate

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

Root Greevil

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

Mugging

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

Jackalope Herd

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

Wave of Indifference

X target creatures can't block this turn.

Turn to Frog

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

Squandered Resources

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

Door to Nothingness

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

Dead Weight

Enchant creature
Enchanted creature gets -2/-2.

Goblin Gardener

When Goblin Gardener dies, destroy target land.

Gorilla Titan

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

Raging Goblin

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

Carnival of Souls

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

Werebear

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

Xanthic Statue

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

Distress

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

Carrion Ants

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

Canal Monitor

Goblin Balloon Brigade

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

Yargle and Multani

Manabarbs

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

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.

Wild Griffin

Ogre Taskmaster

Mortify

Might of Oaks

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

Research Assistant

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

Eternal Isolation

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

Goblin Grenade

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

Tidal Surge

Tap up to three target creatures without flying.

Yargle, Glutton of Urborg

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.

Reparations

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

Counterspell

Aggravate

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