Rule 758

Untargetable Game Objects are not legal targets for the indicated spells and abilities. See rule 355.6. Targeting for more information.

• 758.1 If a Game Object becomes untargetable for a spell or ability after becoming its target and before it resolves, the…
• 758.2 If the spell or ability changes for any reason such that it will no longer fall under the category of spells or…

Official Core Rules