Innkeeper's Talent provides three fantastic effects split between its three tiers: for two mana you get a +1/+1 counter on one of your creatures each time you enter the combat phase, then, for one more, all of your permanents with counters get ward 1, and finally, for four more mana you'll double the number of counters you get on every permanent you control
I dont have a ton of experience with them online, but I did have good experiences buying from their booth at GPs
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This Queen messes with attacks and blocks really well, and she can dissuade potential attackers if youve got almost anything else laying around
For the same mana cost youd probably rather sleeve up a creature with burn as an activated ability, or perhaps firebreathing
Illuna, Apex of Wishes looks to be a shot in the arm for Temur Fires, as well as some Wilderness Reclamation lists