draw an additional card mtg Explore - Commander 2018 #143 (English) Rules Text: draw, card, Type:

Even though they are treated as colorless cards during the game due to the devoid mechanic, they still count as colored cards when it comes to deckbuilding, which means devoid cards can't be legally run in a deck led by Kozilek, Butcher of Truth

Just my opinion, but I strongly feel that any kind of extreme rarity (or unique) element to a game should by only a component quality upgrade like the painted tokens you mentioned

Most notably, whenever you cast a creature spell, you create a 1/1 Human token with training

Countless decks want this, so expect it to be in demand on a similar scale to Warleaders Call, at least in Commander