Which School to Start
Updated
Start on whichever trainer you want to look at for an hour. Flame, Frost, Storm, Wind, Light, Nature, Shadow, and Steel are the eight names, and nothing in the badges, the game page, or the group description ranks them. The useful choice is the one you will actually learn spells from. A school you abandon at level 2 has cost you the Forest clear, which is the only early progress that matters.
A rule that survives missing data
The group says you learn spells from your trainer. So the school is a teacher, not a stat stick. If you like the ice picture on Frost Shard, talk to the Frost trainer and see whether that card, or something like it, is what you are handed. If you like the fire card on the red-coat key art, talk to the Flame trainer. Those pictures are not a promise that the card belongs to that school. They are a way to break a tie. Once the trainer hands you cards, stop browsing and put them in the deck.
Stay on that school through Bramble Breaker. The Forest clear had 55,313 awards. It is designed to be finished on a starter deck. Players who reroll a character here are solving a problem the land does not have. The first real test is Frostfang Pass, at 13,182 clears. Judge the school there. If the deck can contribute to a Frostfang clear, the school is fine. If it cannot, you still do not have a published reason to blame the element. You have a reason to raise a card to a higher tier and to add the wide card One Tap is built around.
Second characters
The Third Character Slot pass is not for sale and prints no price. Even if you already have two characters, a second school is a second trip through the Forest, not a fix for a bad duel. PvP has only 456 Duelist awards. Do not pick a school for a queue almost nobody has won yet.
Paid kits do not pick for you. Puppet Master and Astral Sovereign both say they suit any school. Eye of Fortune changes chest choices and does not name a school. Buy nothing to "unlock" an element.
Keep going with Schools, Decks, Forest, Frostfang Pass, Spells, and Cards.
FAQ
What school should a new player pick?
Any of the eight. Finish the Forest on it before you reconsider.
Is Frost the best because of Frost Shard?
No. Frost Shard is a card name on the key art. It is not a ranking.
Should I match my school to my race?
No pairing chart is published. Pick the school first. Reroll a race later, if at all.
Can I play two schools in one deck?
The public text does not say decks can mix schools. Build with what your trainer gives you.
Sources: Roblox game page, Roblox badges, Lucky's Pals group