But for not doing another reply, the type combination Annihilape has is just goated, probably the best offensive typing currently existing, with Fighting being the type that hits the most types in the game (Normal, Rock, Steel, Ice and Dark), but against Ghost is useless, which then its Ghost type comes in, being easily offensive spammable everywhere, hitting even the Ghost type it couldn't touch at all, but it's resisted by Dark and totally can't touch Normal at all, but guess what? Fighting just helps it! And with a Fighting/Ghost combination can hit EVERY type for at least neutral damage, and it's STAB are resisted by only another dual type, and the latter is even immune, Normal/Ghost of the Hisuian Zorua line.
Bringing Annihilape back in OU would be like playing Table Tennis knowing that the ball is just a literally living angry bomb that can easily explode,in any moment, and even if Tera gets banned, it would still have a STAB exclusive move that at full power is 350BP after only six hits, and it's bulky enough to reach at least 200BP in most matches, as it gets also Drain Punch, and you can't easily status like Toxic, since some of its common sets include Rest with a Chesto Berry.
If we really want back Annihilape then we have to be really sure of the risk we are getting by releasing it from the chains of Uber