Non-Planeswalker Mythics that see play as -3-4-ofs in Standard have always commanded a high price, and are frequently underestimated upon initial release (see The Scarab God and Rekindling Phoenix)
It shouldnt be hard to cast, and the tempo advantage it affords seems great
However, the fact that the summons are going to die in a couple of turns anyway makes me think this is more likely to be just a strong sideboard card
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Our Take: Dual-Type Cards Could Greatly Diversify Lorcana's Metagame Expect To See Some Big Holes Get Filled In Otherwise Powerful Decks Since we don't know the rules surrounding dual-ink cards, it's hard to determine how these cards will affect the Disney Lorcana metagame
Flame Blitz Really powerful sideboard card against planeswalker heavy decks like Esper