Multiple board wipes allow it to sit back and do nothing at no risk of losing
Its a cheap discard outlet for cards like Reanimate and Pyrogoyf, a draw engine, a threat that hits hard due to its counterswhich also make it almost impossible to kill without exile or destroy-based removaland it cant even be blocked well between its immense power and temporary flying ability
Its also a good way to just kill your opponent when you have a board full of elves lying around
Third, it can permanently bin a counterspell, plotted spells can only be cast at sorcery speed
Bonus for intermediate players: Talrand is both a merfolk and a wizard, both well supported tribes, with lots of sorceries and instants that care about those creature types
The first entry in the Illumineers Quest series will be Deep Trouble, a box starring the iconic sea witch Ursula herself