Hi, what should I name with Runed Halo so that Thing in the Ice won't be able to damage to me when it transforms to the horror. Should I name "Thing in the Ice" or "Awoken Horror"?
In general, you can choose the name of a double-faced card's back face, such as Awoken Horror, with Runed Halo if you could otherwise choose the name of that card's front face (C.R. 201.3d, 201.3). If you choose the name Awoken Horror with Runed Halo, then the protection granted to you by Runed Halo would, among other things, prevent damage that sources named Awoken Horror would deal to you (C.R. 702.16e).
EDIT: Correctness edit after comment 3 was posted.
EDIT (Sep. 10, 2020): Clarification.
EDIT (Nov. 21, 2020): Edited.
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Want to play a UW control deck in modern, but don't have jace or snaps?
Please come visit us at the Emeria Titan control thread
EDIT: Correctness edit after comment 3 was posted.
EDIT (Sep. 10, 2020): Clarification.
EDIT (Nov. 21, 2020): Edited.
Nexus MTG News // Nexus - Magic Art Gallery // MTG Dual Land Color Ratios Analyzer // MTG Card Drawing Odds Calculator
Want to play a UW control deck in modern, but don't have jace or snaps?
Please come visit us at the Emeria Titan control thread