You may spend blue mana as though it were mana of any color to activate those abilities
I might run this in my mill Commander deck simply because there arent a ton of cards out there that can mill as well as draw, but the days of draw-go control are over, and this is neither good enough for competitive play nor unique enough for widespread casual demand
Flubs, the Fool Flubs, the Fools combination of abilities and color identity make for a strong choice to play Slime Against Humanity
I can apply Teferi's Ageless Insight first, which turns the card draw of Opt into "draw two cards." Then, I apply Thought Reflection's replacement effect, turning "draw two cards" into "draw four cards." At this point, we're done applying replacement effects
That said, she is a real quarter-back when it comes to that support role
For one thing, each deck has a planeswalker commander, but that was already done in Commander 2014