sure, heres a very basic summary:
Basic attack: a long tentacle swing that has long range but slow wind up and endlag
Crouch attack: a tentacle spin that does multihit damage with small range for totem monster, but large knockback to keep distance
Up attack: a poison ball that makes an arcing rotation and is good for anti air
Air attack: a downward tentacle swing that stuns the opponent briefly while you are in the air
"Secret" attack: a ground pound that does heavy damage with a small shockwave (can be used by attacking in the air while holding down)
Ultimate attack: a black hole that can force your opponent into hitstun for about 4 seconds, letting you attack however you want.