When a warlock topdecks a card using his hero power (Life Tap) in Hearthstone, it is called Tap Deck
"The Warlock got lethal with his amazing Doomguard tap deck"
When a Warlock topdecks a good card using his hero power in Hearthstone.
"...That son of a bich tap-decked Siphon Soul and prevented my lethal! never lucky bullshit"
"!or: "Hahaha Doomguard tap deck easy win