Casual Creature Storm (Modern)

Mull until you get a Beck, or until you can't reasonably mulligan anymore. All of your creatures are mana neutral, some require an input cost. Panharmonicon makes 2/5ths of them mana-positive, Tangleroot make all of them mana-positive. Battle Hymn nets you N mana where N = creatures you control - 2, thanks to the input cost. General playstyle is to find a line in which you can continuously cast creatures and draw cards, until eventually you hit a Grapeshot and win on the spot. Yes it has problems, but it's $50 creature storm. Optimal play is turn one pain land into wild cantor, turn two other pain land, sac the cantor and tap out for Tangleroot, play 2 of the artifact creatures to manamorphose into a beck, and one more artifact creature. That's 9 cards, so two of them need to have been drawn via the turn two draw, you being on the draw, or manamorphose. Anyway, from there you need perfect topdecks of the final artifact creature or a wild cantor, storm count is 7 and you have {G}{G/R} in your pool, one card in hand, 5/4 creatures on board. You need to cast 12 more spells, and there's a couple of ways to do it but they're all again precise sequences and we're so far into magical Christmas land that the ski-free yeti is chasing us, and there's no F key in real life. Basically, it's technically possible to turn two win off this but it won't ever happen to you. Turn three is hard but winnable, turn four is where you can probably do it more than once in the lifetime of the universe.