Permafrost Trap + Manland

[Arsenal]

My opponent activates a manland (Celestial Colonnade, Lavaclaw Reaches, Mishra's Factory, etc). I cast Permafrost Trap, targetting the manland.

During my opponent's next untap phase, does the manland untap?

[Malchar]

Nope. It doesn't matter if it changes types. The effect basically gets locked in as soon as the trap resolves with a legal target.

[Arsenal]

Is there something I can reference in the Comp. Rules? It came up at my FNM, and although I suspected that he wouldn't be able to untap it, I didn't know how to articulate myself properly.

[dorsch]

Comp. Rules:


608.2i If an ability’s effect refers to a specific untargeted object that has been previously referred to by that ability’s cost or trigger condition, it still affects that object even if the object has changed characteristics.
Example: Wall of Tears says “Whenever Wall of Tears blocks a creature, return that creature to its owner’s hand at end of combat.” If Wall of Tears blocks a creature, then that creature ceases to be a creature before the triggered ability resolves, the permanent will still be returned to its owner’s hand.

[Arsenal]

Comp. Rules:

Thanks for the replies everyone.

[Malchar]

That rule quote doesn't really apply. It only covers the case where the effect is untargetted.