Wheel of Fortune, still the best wheel effect in the game, comes in with hundreds in value, but the card value for Revised Edition spins down from there pretty rapidly
If every time your opponent rolls higher than you they have you reroll the die, they now have a 75% shot at winning rather than the 50% they should
Galathul Galecaller and Limitless Rekindling are contained by Alchemy: Strixhaven and only on Arena, and they are quite cool if you can pull them off
You could also run the Spike Feeder / Heliod, Sun-Crowned combo, since you can reanimate Feeder with the Vesperlark and find Heliod with your tutors
There have been many more besides
Card Set(s) -Paramount War- [OP-02] CARD VIEW OP02-067 | UC | EVENT Arabesque Brick Fist Block Icon 1 Effect [Main] Return up to 1 Character with a cost of 4 or less to the owner's hand