All 17 Combos with Sprouting Thrinax

Slimefoot and Squee + Pitiless Plunderer + Sprouting Thrinax + Goblin Bombardment

Infinite Mana: Infinite colored mana, Infinite creature tokens, Infinite damage, Infinite death triggers, Infinite ETB, Infinite LTB, Infinite sacrifice triggers, Infinite Treasure tokens

Activate Goblin Bombardment twice by sacrificing Sporuting Thrinax and Slimefoot and Squee. When Slimefoot and Squee and Sprouting Thrinax die, Pitiless Plunderer triggers twice and Sprouting Thrinax triggers once. Resolve the Pitiless Plunderer triggers, creating two Treasure artifact tokens. Resolve the Sprouting Thrinax trigger, creating three 1/1 Saproling creature tokens. Activate Goblin Bombardment twice by sacrificing two Saprolings. When the Saprolings die, Pitiless Plunderer triggers twice, creating two Treasure artifact tokens. Resolve the Goblin Bombardment abilities from steps 1 and 5. Activate the Treasures by tapping and sacrificing them, adding {1}{B}{R}{G}. Activate Slimefoot and Squee by paying {1}{B}{R}{G} and sacrificing a Saproling. When the Saproling dies, Pitiless Plunderer triggers, creating a Treasure artifact token. Resolve the Slimefoot and Squee ability, returning it and Sprouting Thrinax from your graveyard to the battlefield. When Slimefoot and Squee enter the battlefield, it triggers, creating a 1/1 Saproling creature token. Repeat.