Mantle of the Wolf — ruling 1

If the creature Mantle of the Wolf would enchant is an illegal target by the time the Aura spell resolves, the entire spell doesn't resolve. It's put into your graveyard from the stack, not the battlefield, so its ability won't trigger.

Mantle of the Wolf : règles, fonctionnement et interactions (MTG)

Mantle of the Wolf is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Enchant creature Enchanted creature gets +4/+4. When this Aura is put into a graveyard from the battlefield, create two 2/2 green Wolf creature tokens.

How it works : Mantle of the Wolf

Original English text — Wizards of the Coast / Scryfall

#1January 24, 2020· Wizards of the Coast
If the creature Mantle of the Wolf would enchant is an illegal target by the time the Aura spell resolves, the entire spell doesn't resolve. It's put into your graveyard from the stack, not the battlefield, so its ability won't trigger.
Card named in this ruling
Wolf