breya mtg commander deck Breya, Etherium Shaper Artifact Metalcraft Affinity Magic Etherium Shaper enters the battlefield Breya, Etherium Shaper Modern Horizons

All the choices were in the service of fitting a clean theme

This creature can't attack unless defending player controls a Mountain

This ability affects every card in every game zone, all tokens on the battlefield, and all spell copies on the stack, regardless of who controls or owns them

Granted, it's a bit harder to swing a Vehicle deck with Breya, because your decisions are more deliberate if you end up selling your ace Vehicle for a bit of commander damage, you're just asking to lose a carefully stacked advantage

If you thought games of EDH were too long before, this certainly wouldnt make the problem any better