Nothing like the Giefster, 360s, 720s. Classic SF character with beastly damage.
Now here's a scary piece of fighting game history. Hailing from Guilty Gear, it's my favorite grappler Potemkin. 632146P comes out of nowhere, destroys friendships and combos into way too much damage. Also air grabs, air supers, unblockables and super armor moves! GO HOME POTEMKIN!
3. Iron Tager
Poor Tager is the spiritual successor to Potemkin but has 360s and 720s like Gief. Sadly he kinda fails outside online play, but at least he has that magnetism.
4. Zenia Valov
Not a grappler and definitely not top tier in AH3. But she sure as hell can deal some damage. She'll greet you farewell in Russian and bust out those sexy unblockable setups for all your life. A brutal character to destroy those lolifilth.