beheeyem pokemon card illustration rare [Colorless][Colorless][Colorless] Pokémon Beheeyem (sv11B 127) -

#211 Tyranitar ex features the Electric-type version of the creature, which has great competitive value as one of the strongest ex cards in the expansion

Sobble (24/25)

This is one of the strongest cards in the new set, especially when paired with Serperior, allowing trainers to do up to 200 damage with just two energies

This is because promotional cards are seldom metagame-viable

If we assume that both mana flood and mana screw are things that we'd like to avoid in order to have a fun game of Commander (and maybe even a chance at winning the game), then adding more MDFCs to your deck during deck building is the perfect solution to the problem