They both feature fun mechanics that highlight some of the most fun cards out of the new set so if you can get the two together, it would come at a strong recommendation with the caveat of expecting to upgrade the lists to your liking pretty soon but neither will break the bank in comparison to the traditional preconstructed decks
For example, if you're look to fill out a playset of Mossborn Hydras for Standard but don't want to spend wildcards, you could consider gravitating towards the Strong packet in Jump-In Foundations
Boromir, Warden of the Tower Boromir, Warden of the Tower does the work of Lavinia, Azorius Renegade to smash cascade decks with one less color and without the stax piece that make you universally hated
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However, this has delve and seven generic mana, so if you exile stuff from your graveyard as you cast this, this could be as cheap as a single mana