Like every newly released card, Battles will need to be evaluated on a case-by-case basis, given their mechanics don't seem to break the game pattern so much as to make them a semi-mandatory feature in every deck (unlike what we saw with Companions)
Sure, it's great in midrange matchups, but so is Bastion Inventor
they are considered as one of the top Pokmon cards for collectors who value legacy and significance with the franchises timeline
First and foremost, this Ajani's +1 ability allows it to improve creatures you already control, putting a +1/+1 counter on up to two creatures you control
But the games manga-inspired mysticism merits parental involvement and engagement just to make sure any odd spiritual notions are quickly identified, addressed and dealt with from a solidly Christian point of view
However, the manga is still running and is apparently popular enough to tickle the nostalgia senses of Japanese MTG players