Forum:Mind Over Mattter help

It is said in the Mind Over Matter card that it can negate and destroy a spell, trap and monster summoning by offering 1 of your psychic type monster on the field as a tribute. If you control three monsters and your opponent tributed 2 of your monsters to special summon Lava Golem and you activated Mind Over Matter and tributed the last psychic type monster you control. Will it negate the special summon and return 2 of your monsters back to the field or it will just negate and destroy Lava Golem? Me and my friend keep on arguing about that.