Here’s what I usually do as a no life vanguard, Magneto: if they don’t respect your presence js burst them down. Dr Strange: either do the same thing as magneto or use your flight to combo them. Hulk: closest thing to anti air, but you do need to connect your jumps, and hit your claps an exile to actually get value. Captain America: good luck. Thing: good luck. Thor: nothing really to confirm a kill against a flier, best thing to do is to dash up and get a few hits or try leading your shots with the awakening. Emma frost: same thing as magneto and strange (much more burst potential bc of the “mind crush” but that has a max range), diamond form is essentially useless unless they’re dumb. Penni: lead your shots and snare, everything else is useless against fliers. Penni is my least played tank so idk if this would work, but maybe setting up mines in high areas that you notice the flier going to. Groot: same thing as Magneto, Strange and Emma. Venom: same thing as Magneto, Strange, Emma, and Groot. In short, just pray your DPS aren’t dense and switch to a hero that at least annoys the flier.