karlach card sleeves Art 34: Karlach, Fury of Avernus They gain first strike until end of turn Mtg Karlach Sleeves - Etsy

The vibrant rainbow color palette enhances its visual appeal, making it one of the most striking cards in the Ultra Prism set

Discard 1 card from your hand during each of your End Phases

To help with this new archetype I would look for cards like Starfield of Nyx or anything that recurs enchantments

The main reason for this choice is that this card only activates when a monster with an ATK of 1000 or less is Summoned and a lot of decks may not have enough key monster with a low ATK value to make this card very efficient

Some sets are in higher demand than others, so its good to understand which sets are the most popular