Forum:A little question

So, yesterday i build my dragunity deck, it's totally awesome and i dueled alot with my friends right now, i tried to do the Trident Dragion OTK with it (Dragunity Arma Leyvaten Equiped with Dragunity Aklys And then i syncho summoned with Dragunity Phalanx then destroy 2 cards with Trident Dragion), but my friend said that i couldn't destroy a card on the field with Dragunity Aklys effect, is this right or not?