In Magic The Gathering's Commander format, there is no shortage of specialty decks to choose from
The drawback here is that the Mutate effect inherently makes you susceptible to a two-for-one trade, as it essentially works like putting an enchantment on your own creature
1 Queen of Hearts - Capricious Monarch This card comes with a great payoff when attacking and defending, but it isnt the best for gaining more lore
The best token payoff cards in MTG are those that create more tokens, turn tokens into extra damage/cards, or help your wide board deal a lethal attack
(It won't transform, though.) If this card somehow enters the battlefield with its back face up, it didn't transform, so you won't get an emblem
For example, if you discover 4 and reveal Galvanic Giant (an adventurer card from Wilds of Eldraine with a mana value of 4), you could cast Galvanic Giant, but not Storm Reading (its Adventure, which has a mana value of 7)