Today's card is Hidden Dragonslayer.
Don't expect too much from this guy, but $3.00 a card seems pretty likely given the abundance of big Eldrazis available in Standard and the strong surge in popularity of Hardened Scales. He's a mid-game heavyweight, with threat removal and significant lifegain if used discriminately. And, like Dragon Whisperer (see yeserday's article), Hidden Dragonslayer is a rare in a low[er]-print set. Further, Dragons of Tarkir rotates with Magic Origins, not with Khans of Tarkir and Fate Reforged.
The morph mechanic (never much beloved) got a huge boost in the Khans of Tarkir block. It is now worth considering what the hell their 2/2 milk dud really is under there; there a lot of good morphs.
Definitely a standard spec, he's a little too slow and restrictive for anything else. Get in below $1.50 soon and you're set for a potential of $3.00-$4.00 apiece by next Spring. Don't go too deep, but he has plenty of time left in Standard.