Cosmic Ray Eagle

(Hand):You may discard this card as a [Heal] for the cost of calling a G guardian. :When this unit is put on from hand, [remove a [Heal] from hand or drop], choose up to two of your rear-guards, and lock them. If one or more cards were locked by this effect, this unit gets +20000 until end of that battle, if two or more cards were locked by this effect, 1, choose one of your vanguards, and it gets +5000 until end of turn.