The first time you cast your Commander, you pay its normal mana cost
They werent designed as tournament-legal cards, but a representation of their anime appearance for fans to recreate scenes from the anime through their own memories of their seemingly-infinite power and endless abilities
*The names of the actual cards are the same, but some of the model numbers and rarities may differ
You can Scryfall is excellent and TableCommander's data comes from there
But these Vejam have multiple abilities, including poisoning monsters which have attacked them and merging together to form more powerful monsters at the duelists whim
To anchor our discussion in practical Cube design, I use a thought experiment: if we assign a supercomputer 1 a set of design goals and restrictions, and then ask it to rank every possible Cube (i.e., every possible combination of 360 Magic cards 2 ) by power level tiers, it would look something like this: There are about 10 ways to combine the ~21,000 extant Magic cards into a 360 cube more possibilities than there are atoms in the universe, by a lot