Skyrider Elf
Converge took the old multicolor reward (a fixed bonus for paying off your splash) and made it scalable, but the payout is keyed to color diversity, not raw mana. The X in the cost is a release valve for excess mana, not a size lever: it lets you pour any amount into the spell, yet the counters count only how many colors of mana you spent. Cast this off green and blue alone and you get a 2/2 no matter how much you sink into X; the only way the flier grows is by feeding it from more sources. Three colors makes a 3/3, four a 4/4, five a 5/5, and that 5/5 ceiling is a hard cap regardless of how greedy the X gets. That is the whole lesson of converge in one card: it rewards a manabase built wide rather than deep, asking not just for two colors on curve but for as many as you can support without choking your draws. The flying is what turns that color-counting into a clock, taking a body whose stats are otherwise modest and putting it in the air where every additional source you can splash buys evasive damage. A clean teaching piece for a mechanic that values the shape of your mana over its quantity.

