I could also see it as being an easy gateway into, or back into, the card game, since the way Arena can communicate information at a glance makes it easy to learn about all the new mechanics that have been introduced in the last few expansions
At your end step, Kaima checks for any enemies enchanted with your auras and then goads them all
Sorceries, instants, enchantments, creatures - it doesn't matter
A reprint in DMR should help with availability
The Millennium Calendar can win you the game much faster when you can double its counters twice a turn, and its great for doubling up charge counters too
A 2-rare starter is accompanied by 13 uncommons, 45 commons, and a rulebook with common-rare-uncommon ordering