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Obviously these may be a miss for your format for other reasons (power, archetype mismatch, rarity, don't run planeswalkers etc) but here's a few that I found interesting, divided by broad category rather than color: While I'm still not done reading Cosima, God of the Voyage (I'm on chapter 2, the language is a bit dense) these cards are ones I do like both sides of

Conjure is an Arena-focused mechanic that automatically creates copies of specific cards to add to your library

Alandra, Sky Dreamer rewards you for the latter, which is the one you want to do anyway

It's often tricky to get the mana right in decks that are more than one color

If you create a land version of either with Yue and a Clone, you can have it exile itself on entry, before returning as a Clone again to repeat the loop

Skeletal Scrying is probably the best of the bunch being that it is an instant