This loop centers on the synergy between Alena, Kessig Trapper and Emiel the Blessed, allowing you to generate infinite red mana and infinite creature enters-the-battlefield triggers. When Alena is blinked by Emiel's activated ability, she returns to the battlefield as a fresh object, resetting her tap ability so that she can tap immediately to produce a massive burst of red mana fueled by her own high power. Because Hammer of Purphoros grants your team haste, Alena is never encumbered by summoning sickness when she returns, letting you continuously loop her activation and blinking costs as long as you have enough mana to sustain the exchange.