Firebreathing is any ability that lets you play red mana to boost your creatures power
Cards like Maleficent Monstrous Dragon deliver devastating banishes, while Elsa Spirit of Winter can freeze threats, buying time for your team to quest safely
The accompanying commander set had this thing: I thought about not including this Un-Finity (2022) card, but at the same time, it does play within the normal rules
It might look like a fun little flavour mechanic, but its the secret sauce here
The problem is that, as these are Secret Lair drops, there's a very high chance they'll sell out almost immediately
The difference between killing a one drop on turn one and paying 3 life to do so or killing it on turn two and not paying any life to do so is a funny one