­Stinging Shot Fretwork Colony I know it isn't flying colours but it can't attack or block and it's a hornet so I think it's acceptable to give it flying. The flying ability is mostly flavour anyway since it can't really use it. Obviously this is just a typical black and green bird killer.

The way SBAs work, the creature won't die due to damage until after the ability finishes resolving, so the second part won't work. You should set up a delayed trigger, so

> ~ fights another target creature. At the beginning of the next end step, if that creature died this turn, put a +1/+1 counter on ~. Otherwise, put a -1/-1 counter on that creature.

Otherwise I think this is fine, color-pie-wise. Black is tertiary in flying, and the flying hate works fine for both colors. I think it should have to tap to fight, though, esp since you can't attack anyway