To be fair, Hearthstone has less room for text, and has less need to be wordy because the computer will enforce correct interpretation of the rules. There's been plenty of cases where the Magic variant of a Hearthstone card would be clearer that the Hearthstone card actually is. For example...
Oh, that is nice. Responding to a trick with a removal spell can be devastating :) And yeah, the article is amazing. I love the Remand example as well.
Ah, that's good synergy, but it isn't a 2-for-1. As Mike Flores defines it here: "a two-for-one is any card advantage activity that trades one card for two cards." (Not that he's the authority on two-for-ones, but he uses a commonly accepted definition and explains it very well with lots of...
I run Dragonlord Atarka at the moment, which is cheaper, more splashable, and a huge, evasive threat, and has immediate impact. Wonder if I should swap, because those aren't necessarily always a positive.
Or, "The first time you activate an ability each turn, it costs up to {2} less to activate."
Stick it on a 1/1 for {W} with "{2}{W}, {T}: Tap target creature." and you've got yourself a nice little tapper.
The "up to" wording is stolen from Training Grounds.
Alternatively you could go with...
Virtus's Maneuver is a clean two for one, but you still have to work for it to make the most of it. I quite like it in theory, as it's an edict that still has some value against token decks.
So, are you casting DD for X = 2 then? You're never casting it for X = 4, I presume, because I don't see how you're coming back from that huge card disadvantage.
I like it, but there is tension with black'slove for discarding your opponent's cards. "Covetousness" would be a good alternative name for this mechanic.
Interestingly, it does put up good results, but slower decks are still very viable. The last few winning decks were UBw Artifacts, Naya Beats, R/G Wildfire Aggro, B/W Control, Esper Control, and Grixis Spells.