At the beginning of your upkeep, create a colorless artifact token named Land Mine with "R, Sacrifice this artifact: This artifact deals 2 damage to target attacking creature without flying." Then flip a coin. If you lose the flip, Goblin Kaboomist deals 2 damage to itself.
Other Rigger creatures you control get +1/+0 and have haste. If a Rigger you control would assemble a Contraption, it assembles two Contraptions instead.
Haste When Tuktuk the Explorer is put into a graveyard from the battlefield, put a legendary 5/5 colorless Goblin Golem artifact creature token named Tuktuk the Returned onto the battlefield.
1R, Sacrifice a land: Put a +1/+1 counter on Goblin Razerunners. At the beginning of your end step, you may have Goblin Razerunners deal damage equal to the number of +1/+1 counters on it to target player.
Whenever Frenzied Goblin attacks, you may pay R. If you do, target creature can’t block this turn.
When Krenko, Tin Street Kingpin attacks, put a +1/+1 counter on it, then create a number of 1/1 red Goblin creature tokens equal to Krenko's power.
Trample When Boldwyr Heavyweights comes into play, each opponent may search his or her library for a creature card and put it into play. Then each player who searched his or her library this way shuffles it.
You may reveal this card from your opening hand. If you do, at the beginning of the first upkeep, put a 1/1 red Goblin creature token with haste onto the battlefield. When Chancellor of the Forge enters the battlefield, put X 1/1 red Goblin creature tokens with haste onto the battlefield, where X is the number of creatures you control.
Crackle with Power deals five times X damage to each of up to X targets.
Add RRR to your mana pool. Splice onto Arcane 1R (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)
Other Goblins you control get +1/+1 R, T: Hobgoblin Bandit Lord deals damage equal to the number of Goblins that entered the battlefield under your control this turn to any target.
At the beginning of your upkeep, Honden of Infinite Rage deals damage to target creature or player equal to the number of Shrines you control.
Bushido 2 (When this blocks or becomes blocked, it gets +2/+2 until end of turn.) 2R, Sacrifice a Samurai: Samurai you control gain double strike until end of turn.