You can copy a Species Specialist for double the card draw, or get a second Adaptive Automaton to stack your teams buffs
That top tier is Ancient Grudge, which can singlehandedly ruin Affinity and Lantern Controls day, even through disruptive elements like Thoughtseize removing it from hand
Still, Isu is a lot of fun from a card advantage standpoint, and could be a cool, if slightly underwhelming, voltron commander with a blink sub-theme
their tutor abilities may be narrow, but if you account for them in the deck-building stage, youll always have something worth fetching for
Playing cards in Digimon involves using memory, and using memory pushes the memory gauge in your opponents favor, essentially giving them more resources to work with during their turn