Weatherlight does let you draw Equipment from your deck, but its incredibly clunky at doing so
Impulse draw is rarely the best option in red decks that require combo pieces or that have reactionary interaction
Since the card also works well with Prowess effects, Manamorphose has a decent secondary market price of about $4
Every Disney Lorcana starter deck brings a solid array of cards and possibilities to the table, so picking up any of them won't prove to be a mistake, but Amber/Amethyst is generally the safest choice.
Finding a Moltensteel Dragon, pumping it up at least 6 times, then turning it into Skithryx, the Blight Dragon for lethal Infect damage in the middle of combat is a classic, but there are plenty of other shenanigans if youre willing to explore the increasing pool of Dragons
Once youve assembled a critical mass of sagas, their accumulated benefits all but guarantee a win