She importantly survives Let the Storm Rage On and Teeth and Ambitions, which probably makes her a bit better than Gaston
His ability looks pretty situational, and it can be, but its important to remember that Leyline Axe is currently in Standard
Transmute is about trading card utility, upgrading one card for a card more fine-tuned for your needs
Theres also a brand new keyword in the form of Resist, which boosts a characters defence by allowing them to reduce any incoming damage to their willpower during challenges or taken from other effects
Carnage, Crimson Chaos can bounce a card from your graveyard to your side of the field and prime it for an attack, and the idea of using it to bring Agent Venom back is an appealing one
This is better for a few reasons