His 4 Strength, 5 Willpower stats are decent for Challenging (or being Challenged!), and he also has 1 point of Lore for Questing
If you do put Hans into play, they have a strength of three, a willpower of three, and can quest for two
A good playline would be to play Vault Door on four after you've built your board with some characters, followed by either location plus Voyage on turn five to move your character over to it
Its a really powerful and really popular Temur commander, and you can tweak it based on your meta and personal play style
Treasure artifact with ", Sacrifice this token: Add one mana of any color" (FFI) for Ancient Adamantoise
If this spell was cast from a graveyard, discard your hand and draw four cards