MTG >Combos >Stormrider Rig +Goblin Arsonist +Phyrexian Altar +Koll, the Forgemaster +

With Knoll in play, cast Goblin Arsonist Stormrider Rig's ability will trigger, atach it to the creature. Sacrifice Goblin Arsonist with Phyrexian Altar to add a red mana Goblin Arsonist's ability will trigger, deal 1 damage to the opponent Knoll's ability will trigger, return Goblin Arsonist to your hand Repeat the process for infinite damage.