Advanced format ruling
Hero Mask
Card effect (current official text)Target 1 face-up monster you control; send 1 "Elemental HERO" monster from your Deck to the Graveyard, and if you do, that target's name becomes the sent monster's name, until the End Phase.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.