Thats not exactly surprising given the set is literally named after Ursula
Skullclamp Some sacrifices may be needed Skullclamp is a one-mana equipment card that costs one to equip, and grants the creature to which its equipped +1/-1
While Worst Fears ensures you cant cheat any shenanigans out of it with a Snapcaster Mage, Mindslaver can hang out in your graveyard until youre ready to get it back with a Scrap Trawler
While the Ruby/Sapphire Ink combination crept into the Set 3 competitive formats meta and looks to be one of Set 4s strongest contenders, not many of the cards in this deck saw play
Some players try to build the most efficient and competitive decks, while others like to experiment and see if they can pull off specific interactions
Ostensibly, any Stage 1 and Stage 2 evolutions will also come in the ex flavour, as they have previously been needed to evolve a Pokmon-ex.