I'm not following his tweet. Is there some established way to go from 2 to 4 red-heavy mana on turn two in modern? As, y'kno, turn three regular Tron Karn seems kind of the gold standard here.
Well, the advantage of tron is that it's not a one-shot deal. You get tons of mana every turn after you assemble tron. And the color requirement means you can't even add this to tron to improve its likelyhood of bustingsomething early.