Over time, more and more powerful cards also require specifically colorless mana instead of or in addition to colored mana, especially Eldrazi like Ulalek, Fused Atrocity
Pokmon Trading Cards have evolved beyond being a childhood pastime, now captivating collectors of all ages
While Tesla and Boring and OpenAI certainly reach out to white or black at times, theyre blue/red at their core
Whether to include one card over the other comes down to specific environments, and larger Cubes could certainly facilitate both, but the point is that Callidus Assassin is a very real card for control decks that would like to spend their turns leaving up mana for counterspells and removal
But confusion can cripple - and it's often an unanticipated potential malady when folks prep their decks
Armarouge CC - Blaze 50 RRC - Crimson Blaster Discard all Fire Energy from this Pokmon