Bloodthirst 2 (If an opponent was dealt damage this turn, this creature enters the battlefield with two +1/+1 counters on it.)

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.)
Vigilance

Flying
Sacrifice Gustrider Exuberant: Creatures you control with power 5 or greater gain flying until end of turn.

Whenever Hamlet Captain attacks or blocks, other Humans you control get +1/+1 until end of turn.

As Hammer Jammer enters the battlefield, roll a six-sided die. Hammer Jammer enters the battlefield with a number of +1/+1 counters on it equal to the result.
Whenever you roll a die, remove all +1/+1 counters from Hammer Jammer, then put a number of +1/+1 counters on it equal to the result.

Defender
At the beginning of each upkeep, if no spells were cast last turn, transform Hanweir Watchkeep.

: Add X mana of any one color, where X is the number of Allies you control.

Counter target spell. If that spell is countered this way, put that card on the top or bottom of its owner's library instead of into that player's graveyard.

When Hostage Taker enters the battlefield, exile another target creature or artifact until Hostage Taker leaves the battlefield. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.

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.

Detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)
Draw a card.

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Ink-Eyes, Servant of Oni deals combat damage to a player, you may put target creature card from that player's graveyard onto the battlefield under your control.
: Regenerate Ink-Eyes.

Creatures you control get +2/+1 until end of turn.

[+1]: Up to one target creature gets -2/-0 until your next turn.
[−3]: You may cast target instant or sorcery card from your graveyard this turn. If that spell would be put into your graveyard this turn, exile it instead.
[−9]: You get an emblem with "Whenever you cast a spell, target opponent mills five cards."

: Draw a card, then discard a card. If there are five or more cards in your graveyard, exile Jace, Vryn's Prodigy, then return him to the battlefield transformed under his owner's control.

When Joyride Rigger enters the battlefield, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)

Jungle Shrine enters the battlefield tapped.
: Add , , or .

Target creature gets +1/+0 and gains first strike until end of turn.

Knight creatures you control have double strike.

Knight of the Reliquary gets +1/+1 for each land card in your graveyard.
, Sacrifice a Forest or Plains: Search your library for a land card, put it onto the battlefield, then shuffle your library.