Altair is another rather efficient Assassin perfect for an Assassin typal deck
We tried desperately to fit it in, but the story to justify it just got too convoluted
Every time you cast Jeleva, you exile cards from peoples deck
BT9-111 SEC Digimon Lv.7 Alphamon: Ouryuken Color Black Cost 15 DP 16000 Digivolve Cost 1 Black 7 from Lv.6 Form Mega Attribute Vaccine Type NO DATA/Royal Knight/X Antibody Card Text 1 [Special Digivolution Condition] [Digivolve] 3 from [Alphamon] w/ [Ouryumon] digivolution card [Effect] [When Digivolving] Delete all of your opponent's Digimon with the highest play cost
Bojuka Bog is another option in black, though it generally lacks the ability to exile at instant speed, and it only hits one player
Its first attack is Charge and requires one electric-type energy, it doesn't deal any damage, but it does let the player attach two electric-type energies from their deck to the Pokmon