This elegant loop turns Harabaz Druid into a self-contained mana engine by leveraging the creature-bouncing ability of Temur Sabertooth to continuously reset the Druid's tap-to-produce mana ability. Because Harabaz Druid counts all Allies you control—including itself upon re-entry—each iteration can yield a net-positive amount of mana once your Ally count is high enough to offset the cost of Temur Sabertooth's activation and the creature's recast. Meanwhile, Purphoros, Bronze-Blooded sits quietly on the battlefield granting haste to your creatures and ensuring that this endless cycle of entering and leaving the battlefield instantly overwhelms your opponents with fiery, lethal impact.