And Elite Four, also the Fortress Leader, imposes a mutual conditional that, it seems to me, is designed to accentuate some broad characteristic of a type: statuses for Grass, alpha strike for Electric, retreat cost for Water, and so on
The most playable include the likes of The Ever-Changing Dane, an Esper shapeshifter Commander that fans of Lazav will jump on immediately as a fun new transforming Commander
However, because the counters are removed, it is difficult (but not impossible) to make multiple players lose the game from this ability in the same combat phase
2+: Your opponent cannot activate monster effects during the Battle Phase
Obviously you need a decent number of multicolored cards, but thats very doable in the format