As for the card itself, Inalla is a powerful build-around-me commander restricted to the Wizard tribe, which means that every deck built around her is going to look the same -- not a criticism, just a fact
If your board is empty and your opponent has you right on the ropes, this card stops them in their tracks
Therefore, the most efficient deck build will be focused on large damage swings, speed of setup, and just enough disruption to prevent the opponent from ever getting back into a stable position
Illustrated by Vilhelmas Banys Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
The ability to clear the field of an opponents boss monster with just a single card will always be useful, but against the right deck
Its current prices dont quite reach Blastoises, as a 1st edition, holo, shadowless, grade 10 Venusaur can be purchased for $6,000 (or $1,800 for a grade 9)