This loop achieves infinity by leveraging Temur Sabertooth's bounce ability alongside Accomplished Alchemist, whose mana production scales directly with your life gain. Once you have enough life gained earlier in the turn to fuel the Alchemist's activated ability, tapping it generates a surplus of mana that more than covers the Sabertooth's return cost and the creature's subsequent recast. Meanwhile, the presence of Anger in your graveyard grants all your creatures haste as long as you control a Mountain, allowing Accomplished Alchemist to be tapped the very moment it enters the battlefield without waiting for summoning sickness.