Merry, Warden of Isengard and Pippin, Warden of Isengard provide excellent food synergy in this deck, and also help further your theme of constant access to key creatures via their partner ability enabling you to pull the missing warden out of your deck when you cast the other
A 2-rare starter is accompanied by 13 uncommons, 45 commons, and a rulebook with common-rare-uncommon ordering
At your end step, Kaima checks for any enemies enchanted with your auras and then goads them all
A reprint in DMR should help with availability
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