Chandra's Flame Wave — ruling 1

If the target player is an illegal target by the time Chandra’s Flame Wave resolves, the spell doesn’t resolve. No creatures or players are dealt damage, and you won’t search for Chandra, Flame’s Fury.

Chandra's Flame Wave — ruling 2

Chandra’s Flame Wave targets the player, not their creatures. A creature with hexproof may be dealt damage this way.

Chandra's Flame Wave : règles, fonctionnement et interactions (MTG)

Chandra's Flame Wave 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

Chandra's Flame Wave deals 2 damage to target player and each creature that player controls. Search your library and/or graveyard for a card named Chandra, Flame's Fury, reveal it, and put it into your hand. If you search your library this way, shuffle.

How it works : Chandra's Flame Wave

Original English text — Wizards of the Coast / Scryfall

#1July 12, 2019· Wizards of the Coast
If the target player is an illegal target by the time Chandra’s Flame Wave resolves, the spell doesn’t resolve. No creatures or players are dealt damage, and you won’t search for Chandra, Flame’s Fury.
No other card is named in this ruling.
#2July 12, 2019· Wizards of the Coast
Chandra’s Flame Wave targets the player, not their creatures. A creature with hexproof may be dealt damage this way.
No other card is named in this ruling.