Relentless

Relentless is a slang term used by Magic R&D to describe spells that allow a deck to have any number of card of a certain name, ignoring the "four-of" Deckbuilding rule (100.2a).

This mechanic was first printed in black, but not necessary exclusive in that color. It is named after the Relentless Rats, and was originally inspired by Richard Garfield's Plague Rats.

Throne of Eldraine introduced the card Seven Dwarves, which has a variant on the Relentless ability. It allows players to break the "four-of" deckbuilding rule but places a different maximum limit on the card. This restriction applies to Limited as well as Constructed.

Strixhaven: School of Mages introduced the card Dragon's Approach, which is the first non-permanent to have the ability.

Cards with relentless

 * Blue


 * Black


 * Red
 * [max. seven]
 * [max. seven]