Discard 1 monster, then target 1 face-up monster on the field; its ATK and DEF becomes the discarded monster's ATK and DEF, until the end of this turn. Monsters you control cannot attack directly during the turn you activate this card.
Well you can use this in a low atk deck essentially to drop opponents atk power or to increase yours... So I would say its pretty interesting tech plus you can combo it with something like Fabled Lurrie
Tribute low atk monster to target enemies monster then...
Use monsters you control to atk enemy monster, apply Half Shut on enemy monster, if your opponent has another face up monster on the field, use magical arm shield to grab that monster; this should finish off your opponent considering you should own the higher atk monster.
Love thy burn
Discard exodia piece during opponents attack, back up soldier piece back. Rinse repeat.
Its much more situational. This card requires you to have real BIG ATK monster or very low ATK monster in hand to be of use. You also need discard them when they potentianally useful for next turn instead of some dead/less useful card in hand unlike Rising Energy
I have a Kuriboh on my field then I activate this to discard my Blue Eyes. Get lost by my Kuriboh, kid!