Activate Ashnod's Altar by sacrificing _____ Goblin, adding {C}{C}.
Activate Epitaph Golem by paying {2}, putting _____ Goblin from your graveyard on the bottom of your library and returning any stickers on it to your sticker sheets.
Activate Grenzo by paying {2}, putting _____ Goblin from the bottom of your library into your graveyard, and then onto the battlefield.
_____ Goblin enters the battlefield, getting a name sticker and adding at least {R}{R}{R}.
Repeat.

Infinite colorless mana

Infinite death triggers

Infinite creature ETB

Infinite creature LTB

Infinite red mana

Infinite creature sacrifice triggers

Grenzo, Dungeon Warden

Epitaph Golem

_____ Goblin

Ashnod's Altar

Activate Goblin Bombardment by sacrificing _____ Goblin, choosing any target.
Mortuary triggers, putting _____ Goblin on top of your library and returning any stickers on it to your sticker sheets.
Resolve the Goblin Bombardment triggers, dealing 1 damage to its target.
Cast _____ Goblin from the top of your library by paying {2}{R}.
_____ Goblin enters the battlefield, getting a name sticker and adding at least {R}{R}{R}{R}.
Repeat.

Infinite damage

Infinite storm count

Mortuary

Conspicuous Snoop

Goblin Bombardment

Cast _____ Goblin by paying {2}{R}.
_____ Goblin enters the battlefield, getting a name sticker and adding at least {R}{R}{R}{R}.
Activate Phyrexian Altar by sacrificing _____Goblin, adding one mana of any color.
Decaying Soil triggers, causing you to pay {1} to return _____ Goblin from your graveyard to your hand and returning any stickers on it to your sticker sheets.
Repeat.

Infinite colored mana

Decaying Soil

Phyrexian Altar

Cast Banishing Knack by paying {U} targeting Midnight Guard.
Cast _____ Goblin by paying {2}{R}.
_____ Goblin enters the battlefield, triggering itself and Midnight Guard.
Resolve the _____ Goblin trigger, getting a name sticker and adding at least {R}{R}{R}{R}.
Resolve the Midnight Guard trigger, untapping it.
Activate Midnight Guard by tapping it, returning _____ Goblin from the battlefield to your hand and returning any stickers on it to your sticker sheets.
Repeat from step 2.

Midnight Guard

Banishing Knack

Cast _____ Goblin by paying {2}{R}.
_____ Goblin enters the battlefield, triggering its ability twice, getting two name stickers and adding at least eight {R}.
Activate Stonework Packbeast by paying {2}, adding {U}.
Cast Man-o'-War by paying {2}{U}.
Man-o'-War enters the battlefield, triggering its ability twice, returning itself and _____ Goblin from the battlefield to your hand and returning any stickers on them to your sticker sheets.
Repeat.

Panharmonicon

Man-o'-War

Stonework Packbeast

Combos with "_____ Goblin"