As it is, I don't see it as an anti-deckout card. Like, at all. I only see it as a quanta accelerator for Darkness. If you gave only one pillar / tower, then the major effect would be the anti-deckout one. As it is, I only see it spammed in Darkness decks (which have good healing as is) to have a ridiculously low amount of quanta cards. For instance, an upped Mono Darkness deck with this card can effectively run 6 of these + 6 pests and have the remaining 18 cards free for Dusk, Dagger, Vamps, Eclipses, Steals and Siphons, possibly even Gargoyles. Pretty deadly deck, as Mono Darkness is strong as is, and you are effectively gaining a reliable quanta accelerator + 2 cards. As for the hp loss, first turn Dagger covers that.