This classic loop turns an army of friendly faces into an endless fountain of green mana. It all starts with Priest of Titania generating a surplus of mana thanks to fellow Elfs, which you then use to fuel Temur Sabertooth's activated ability, bouncing the Priest right back to your hand for reuse. Meanwhile, Fires of Yavimaya grants your creatures haste so the Priest can immediately tap for mana the moment it hits the board again, keeping the cycle spinning infinitely.