For Challenge # 045, the Primeval Titan equivalent. :)

It should have your opponent do he search, because you can just choose never to find anything... unless you're trying to enable landwalk or something.

Trying to think what particularly nasty lands you could give an opponents. But yeah; you'll just choose to fail that part. Which is fair enough; this is worse than a defensive Craw Wurm, and vastly horrible if an opponent can chump it! I know you're mocking the cycle, but this seems a bit too harsh.

Self-trample doesn't actually do much; if an opponent blocks with a 1/1 goblin token you can just pile on 6 damage to it, rather than hitting the opponent (redirected to yourself) for 5.

There aren't really any lands that would be actively detrimental to a board position; for things like City of Brass or Nomad Stadium they can simply refuse to use them, and Glacial Chasm, Lake of the Dead, and friends would give them the out of just sacrificing the land you give them.

The only way you could force an opponent to tap painlands is with Drain Power or controlling their turn. Controlling them for the duration of a spell with Word of Command could work too, as long as they either have a spell that requires all that mana, or you gave them a land from the Calciform Pools cycle that you can legally sink mana into while controlling them for Word of Command.

Put it back to 6/6, changed it to regular Trample, and gave the land searching to the opponent.

@Vitenka and SadisticMystic: Partial Decklist for the way this card used to work:

4x Primiative Titan
4x Icy Manipulator
3x Sorrow's Path

That, by the way, would be a pretty face-smashing deck if I do say so. No need to swing with the Titan (Unless there are multiple opponents), the Sorrow's Path and Icy Manipulator will kill that player quite rightly.