Beam Dragon, Apatomaser

/:Engorge (When this unit attacks, you may retire one or more of your other rear-guards. If you do, it is engorged until end of turn) :[ 1 & 1] When this unit is placed on , if you have a vanguard with "Gaia" in its card name, you may pay the cost. If you do, until end of turn, this unit gets +2000, and ":When this unit becomes engorged, draw a card, and this unit gets +5000 until end of turn.".