The Ovalchase Daredevils are supposed to be discard fodder for The Underworld Cookbook, helping reach delirium for Dragon's Rage Channeler and recurring with a stream of food tokens
In a 1-versus-1 game, Mangara slows down their game plan and keeps you alive longer, as they would likely stick to 1 attacker and 1 spell on their turn (unless theyre willing to let you draw)
Two damage might not be the most amount of damage, and it likely wont be taking out a ton of characters or locations, but using it to polish off damaged characters is a solid way to go
Brawl (both Standard and Historic) is a "singleton" format, meaning only one copy of any card that isn't a basic land is allowed in the Deck
With a current average selling price of $21, its worth noting that, if you did want to pick up the standard, non-Hyper Rare variant of this card, itll actually only cost you around $0.13 on average
I have lost a number of games after Donating an Illusions away simply because they had a massive board able to attack me down from my massive life total over the few turns they had while able to afford the upkeep