Requires

Weirding Shaman must be on the battlefield. Pitiless Plunderer must be on the battlefield. Ashnod's Altar must be on the battlefield. Doubling Season must be on the battlefield. You control at least one additional Goblin. Mana needed:

Steps

1. Activate Weirding Shaman by paying and sacrificing a Goblin.
2. The Goblin dies, triggering Pitiless Plunderer, creating two Treasure tokens.
3. Resolve the Weirding Shaman ability, creating four 1/1 Goblin Rogue creature tokens.
4. Activate Ashnod's Altar by sacrificing a Goblin Rogue creature token, adding .
5. The Goblin Rogue dies, triggering Pitiless Plunderer, creating two Treasure tokens.
6. Activate two Treasure tokens by tapping and sacrificing them, adding .
7. Repeat.

Results