MTG >Combos >Thermopod +Ronin Warclub +Kobolds of Kher Keep +Koll, the Forgemaster +

With Knoll in play, cast Kobolds of Kher Keep Ronin Warclub's ability will trigger, attaching it. Sacrifice the creature with Thermopod to add a mana Knoll's ability will trigger, return Kobols of Kher Keep to your hand Repeat the process for infinite mana.