It's hard to tell if a Doctroid is in battle or performing healing.
[AUTO]:[Counter-Blast 1] When this unit is placed on (VC) or (RC), if you have an vanguard, you may pay the cost. If you do, put the top card of your deck into your damage zone, and at the beginning of your end phase, choose a card from your damage zone, return it to your deck, and shuffle your deck.