Portal's Companion , Galileo's square- law, or rap's Ice ____ (3 clues for the price of one!)
11A
What many think Mario uses to hit blocks
Verticales
1D
Potential partners, idiomatically
2D
Worshipper of a llama god
3D
Pokémon "ability" that may cause opponents to flinch in disgust (possessed by such majestic creatures as a skunk, a highly toxic blob, and a literal pile of garbage)