Flynn Rider - Charming Rogue: Here Come the Smolder - Whenever this character is challenged, the challenging player chooses and discards a card.

Soothsaying: {3}{U}{U}: Shuffle your library.\n{X}: Look at the top X cards of your library, then put them back in any order.

Insidious Dreams: As an additional cost to cast this spell, discard X cards.\nSearch your library for X cards, then shuffle and put those cards on top in ...

Mickey Mouse - Steamboat Pilot:

Bloodlust Inciter: {T}: Target creature gains haste until end of turn.

Owlbear (Showcase): Trample\nKeen Senses — When Owlbear enters the battlefield, draw a card.

Spellbreaker Behemoth: This spell can't be countered.\nCreature spells you control with power 5 or greater can't be countered.

The Grey Havens: When The Grey Havens enters the battlefield, scry 1.\n{T}: Add {C}.\n{T}: Add one mana of any color among legendary creature cards in you...

Karlach, Fury of Avernus: Whenever you attack, if it's the first combat phase of the turn, untap all attacking creatures. They gain first strike unti...

Zeus - God of Lightning: Rush (This character can challenge the turn they're played.)Challenger +4 (While challenging, this character gets +4 [Streng...