Pokemon cards are well-known for their high resale value, like the rare base set Charizard card that fetched $420,000 at a 2022 auction
I'll give it a shot again
WarGreymon (AD1-004) Main Effect Raid (When this Digimon attacks, you may switch the target of attack to 1 of your opponent's unsuspended Digimon with the highest DP.) Piercing (When this Digimon attacks and deletes an opponent's Digimon in battle, it checks security before the attack ends.) [On Play] [When Digivolving] Delete 1 of your opponent's Digimon with as much or less DP as this Digimon
So if two players have two different cards with the same name out, you get to remove both of them with one effect
The regenerate and hexproof abilities return to hand to be used again if they should drop off or be used, and several of the removal abilities are tied to creatures I can then kill off, bring back as lands, and then use again
Monastery Mentor is interesting, but how about a mentor that creates ally tokens, which trigger diverse ally bonuses, and gives them menace and prowess