Indoraptor can be a very big creature for its mana cost, so youll usually threaten to deal 5+ damage if they dont sac a creature
Even if someone goes to remove this commander, they will take at least six damage doing so, and since youre in Gruul, your deck should be filled to the brim with mana dorks, such as Llanowar Elves, Elvish Mystic, and Sakura-Tribe Elder, to help pay for the commander tax easily
I realized just how complex the game used to be, and how simple it is today by comparison
Look at the top five cards of your library
Doubling up as a Fireball to end the game also pushes the card higher than many mass removal cards which are pretty narrow in application for the most part.
Unlike 1mv dorks, which are mostly interchangeable, the playability of 2mv dorks usually depends on which specific cards synergize with your decks strategy