A 3-mana tutor with limited targets is too slow for just about any other format, but there are folks who rock it in Amulet Titan builds in Modern to find Summoner's Pact, Tron players who use it to grab those coveted Urza lands, and even Living End decks to grab their namesake cards
How To Use Adventure Adventure is an incredibly flexible mechanic, and completely dominated its time in Standard
Its not difficult to have Jetmir drop on the third turn with two other creatures in play (thank you mana dorks), immediately turning on the +1/+0 and vigilance
If you wanted to lean into stax, you could probably keep a Kithkin subtheme, and it might be amusing to lock everyone down and then kill them with such an unlikely and underappreciated type of creature
From the temples of omen-speaking oracles to the five realms of the Underworld, the champions of the gods vie for immortal favor and a place among the worlds living myths