Your deck will be most consistent if you stick closer to 40
If the resulting spell would leave the stack for any reasonit resolves, it doesn't resolve because its targets are illegal, it's countered, and so onit's exiled instead
It's now been a couple of years since Disney Lorcana first hit shelves, and while it's blossomed into one of the best card games over the course of that time, it's also launched numerous sets since then to keep things interesting
They arent always bulky warriors swinging giant swords (though of course, there are a few of those too)
Outside of cast from exile theme decks in Commander, this just seems too inefficient to really bother with
In fact, with 19 Chandra cards, eight Gideon cards and 13 Jace cards, you could just build a deck out of those three planeswalkers alone