The effect reads, This Digimon can digivolve, so you can choose not to
Despite that small color misfire, the card is awesome
Arena Cuombajj Witches Death or Glory Demonic Hordes Diaochan, Artful Beauty Evangelize Karplusan Minotaur Magus of the Arena Mausoleum Turnkey Mogg Assassin Nova Pentacle Preacher Rakdos Augermage Tasigur, the Golden Fang Thran Tome Volcanic Offering
And finally, Shared Trauma is an awkwardly designed and forgotten card, made to fill out a cycle
This utility allows players to adapt to the opponent's board depending on what monster they send to the GY, which makes the card relevant for stopping opponents from interrupting combos, and it also starts plays because it adds a Fire-attribute, Thunder-type monster from the deck to the hand
equip it with 1 Equip Spell from your Deck that can equip to that target