Ohh, that goes big. Quite hard to set it off, seems plausiby fair to me. Nicely exciting. I like it.

Awesome! Reminiscent of Bloom Tender but higher risk/reward.

Funny how much he looves a Transguild Courier.

I think I understand what Prisma is trying to do, but the wording is kind of throwing me. I think the idea is that, if I have three or more green permanents, I can tap this to add GGG to my mana pool. Three or more red? RRR.

Cool. But the way it reads, it looks like I can tap this for GGG on round two, the turn after I play Lotus Prince. Because Lotus Prince is green, and "each color (green) is among permanents you control."

Wouldn't it just be easier to spell it out? "Activate this ability only if you control three permanents of that color."

The wording is a little awkward; Alex got it right on what it's supposed to do. If the permanents you control represent each color (i.e Transguild Courier, or Battlewise Hoplite, Mogis, God of Slaughter and Lotus Prince itself, , it turns on your Prisma.

Oh! Hmm. I see where the problem is. I assume Wizards would just write the whole thing out. "As long as you control at least one white permanent, at least one blue permanent, at least one black, one red and one green." I can understand why you wouldn't be keen to do that, though.

They'd probably go with the wording used on Coalition Victory.

Right, right. That makes more sense. Though, I know they used to get a fair number of questions as to how that card works, they'd probably go with that wording anyway.