Ancient Dragon, Tyrannolegend D-VS06/029 RRR

[AUTO]:When this unit is placed on (VC) or placed by the ability of a card with "Ancient Dragon" in its card name on (RC), this unit gets [Power]+10000/drive +1. Then, COST [discard a card from hand], choose a [Front] trigger from your drop, and put it on the top of your deck. [AUTO](VC/RC):At the end of the battle this unit attacked, COST [Counter Blast (1) & retire one of your rear-guards], and draw a card. [AUTO](RC)1/Turn:When your drive check reveals a trigger unit, put the top card of your deck face down as an equip gauge for this unit.