Lifegain and mill don't overlap much in Magic, though Hope and a few stray cards like Space-Time Anomaly have carved out space for this crossover
Second, if you do manage to defeat the Battle, it transforms into a powerful Planeswalker
While affinity for artifacts is the mechanic most will instantly think of when plotting how best to maximize the potential of Energy Tap, there are plenty of other creatures in and outside of blue that can easily be played for a steep discount
When Wizards announced the Affinity bannings in March 2005, it completely gutted the deck, taking away not only two of its key win conditions in Disciple of the Vault and Arcbound Ravager but all six of the artifact lands as well
The set had five creature types that it was focusing on (Kithkin, Merfolk, Goblin, Elemental, and Elf)
50 is a lot , so Im going to trim down the fat and showcase the best offerings from this expansion