The alternate cost will almost always be available since green is such a popular color, so there isn't much risk when it comes to including this spell on your arsenal
If you do, this attack does 70 more damage
RCCCC - Blazing Bomb 240 Your opponent's Active Pokmon is now Burned
Then you can spend four mana, one Phyrexian white, to make a 1/1 aforementioned Mite token, so this is a mana sink in the later game or can let your Mites kills with normal damage quite quickly
These are Kartana, Blacephalon, Xurkitree, Dawn Wings Necrozma, Dusk Mane Necrozma, and Stakataka
Giving all your permanents Ward 1 may not seem too strong at first glance but, if this is played early alongside other powerful threats, it can seriously slow down your opponents development