Multiple Impale Cards

As Absolute Zero’s Impale card is not Limited, am I correct in ruling that multiple Impale cards can be played against a single target?

Absolute Zero worked over Citizen Dawn last night with two impales for a good long while and I couldn’t see any ruling that would indicate this was incorrect.

Thanks!

No reason it wouldn’t, or it would say “place this next to a card that is not impaled,” like Plague Rat’s Infection cards.