Pharika's Cure — ruling 1

If the creature is an illegal target as Pharika's Cure tries to resolve, it won't resolve and none of its effects will happen. You won't gain life. If, on the other hand, Pharika's Cure does resolve but the damage is prevented, you'll still gain life.

Pharika's Cure : règles, fonctionnement et interactions (MTG)

Pharika's Cure 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

Pharika's Cure deals 2 damage to target creature and you gain 2 life.

How it works : Pharika's Cure

Original English text — Wizards of the Coast / Scryfall

#1September 15, 2013· Wizards of the Coast
If the creature is an illegal target as Pharika's Cure tries to resolve, it won't resolve and none of its effects will happen. You won't gain life. If, on the other hand, Pharika's Cure does resolve but the damage is prevented, you'll still gain life.
No other card is named in this ruling.