Many protection spells, such as Akroma's Will and Heroic Reinforcements, only provide opposing boards with indestructibility, so exile-based wraths safely ignore them
(11/8/2024) "Flashback [cost]" means "You may cast this card from your graveyard by paying [cost] rather than paying its mana cost" and "If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack." (11/8/2024) You must still follow any timing restrictions and permissions, including those based on the card's type
Arnos option to be cast facedown as a disguised creature is fine in an environment with other face down creatures, but it's basically useless if Arno's your Rakdos commander
Flying When Capricious Hellraiser enters the battlefield, exile three cards at random from your graveyard
Whenever chaos ensues, create two Treasure tokens
So, while most of the cards I can discuss are fairly budget-friendly to begin with, I wanted to maintain that focus on affordability