split second cards mtg Angel's Grace Split Second in MTG: Rules,
Description
The Gathering Outlaws inspiration is evident in the design of the deck box, which features vibrant, full-color artwork and a unique theme that reflects the sets wild and unpredictable nature

Why its a contender: Crucially, it allows players to stop game-winning threats even when they have no available mana, fundamentally changing how high-power formats are played

Most formats fall under this category

Some of the frame groups (like Planeswalkers) also have special scripts associated with them

Whenever Kefka (clown side) attacks, each player must discard a card, and you can then draw a card for each card type discarded