Infectious Horror sounds like it has an activated ability beyond Unearth.
Also, this is all still speculation? The drawback could be terrible- I'm sure by Gouger, he just meant RB 4 power creature for 3, not so much the Can't Block part. (not saying it can't happen, just saying it sounds a little overpowered still...)
He doesn't really say that it is a gouger so being a thrinax is a possiblity.
Here is my stab at the card.
Creature - Lizard
At the beginning of your upkeep sacrifice Scarland Thrinax unless you sacrifice a land you control.
Someone said his drawback is better than gougers..( and thats just not blocking)
This would be unplayable i think..
Why would you sacrifice lands just to keep alive a 4/3?
You can also sac a land and then get it killed so its a 2 for 1.
And dont tell me unearth covers for it
I think its more like you lose 1 life at upkeep or something.