In decks capable of generating a lot of mana through rituals for example, this sounds very fun and powerful
However, they require multiple Energy types to use their attacks, which make them highly inconsistent when Energy generation is randomized and thus require the entire deck to revolve around them or to have some other utility that does not involve attacking, such as "Druddigon" ( Mythical Island )
A tried and tested strategy for all land cards with more or less the same design
And while my literary side is grumbling at the lores un-compleating of basically all the major characters (akin to the Avengers movies killing off half of the superheroes only to say just kidding! and bring nearly all of them back one movie latertheres no force to a narrative without any real stakes for the characters!), I am happy to see Nissa live on so that fans can see more of the couples relationship in the spotlight, just as we did in the recent chapter of the Aftermath storyline told from Nissas perspective
They don't even need to know that they've been chosen
I think it costs about 70p per pack, but fewer people would buy them if the cost wasnt so confusing