Crush Tusk

The Crush Tusk is a rare and important item in the game. The tusk is most likely a tooth from the demonic creature Sludge. It is vital to get this item because it becomes important to get through Harun Channel. It can only be equipped by Fire Adepts Tyrell and Eoleo, though when you get this item, Eoleo is not yet in your party. Its effect of equipping gives the Crush Psynergy.

Crush is very similar, and may be considered a replacement to, the Pound psynergy in Golden Sun: The Lost Age. The Psynergy spell resembles two hands clasping together and swinging down to destroy a boulder or cracked floor. As a battle psynergy, the same effect occurs, dealing medium damage. It costs 7 PP to perform.