Without this clarification, you could technically quest with your Support character, give its Strength to itself , then ready that character and challenge something while having double Strength
To continue using Khans of Tarkir as an example, each of the five clans has a signature mechanic associated with it: Abzanoutlast, Jeskaiprowess, Sultaidelve, Marduraid, Temurferocious
Mickey Mouse Food Fight Defender is excellent here, or the new Clarabelle Clumsy Guest also give you some flexibility against items
However, if you are new to the game, start with our guide on how to play Magic: The Gathering
Summon: Primal Garuda: Its a solid removal spell on legs (wings?)
The Ursula Scenario Deck has a unique card back to differentiate it from standard cards