Consider Scion of Draco, The Weatherseed Treaty, Briar Hydra, Jodahs Codex, Territorial Maro, and Nishoba Brawler
Comet, Stellar Pup Ive never been the biggest fan of planeswalkers and I rarely run them in my Commander decks
On average, moving from 55% to 60% wins nets you 80 gems (i.e., you lose 80 fewer gems)
Alternatively, Orcish Bowmasters will answer 1-toughness creatures like Ragavan, Nimble Pilferer or Ocelot Pride while punishing Quantum Riddler for drawing extra cards
So, for example, it'll allow a Mox Opal to generate any color of mana when you tap it, or it might let Puresteel Paladin reduce the equip costs for all your artifacts to 0
If a card successfully defends against an attack, nothing happens - no player takes damage or loses any cards