Fun concept. There's perhaps an angle to enhance its evocativeness by making it a creature where that Food sac is a cost of an ETB trigger, which if paid would lead to a binding-ability ala "... exile target permanent until ~ leaves the battlefield" -- as I find that ability to very much have the "galloping things whole" vibe to it.
Related to that concept, there was some years ago there was teasing about that binding ability being shifted to green to some extent. This to me would seem like a good opportunity to try it out :P . Also, if you make it a creature of this sort, then I think you can pretty much remove all the "non" clauses from it and have it be like Acidic Slime type of thing (in that it has a wide range of possible targets) that can hit all permanents.
Speaking of which, why the nonlegendary clause to begin with?
Fun concept. There's perhaps an angle to enhance its evocativeness by making it a creature where that Food sac is a cost of an ETB trigger, which if paid would lead to a binding-ability ala "... exile target permanent until ~ leaves the battlefield" -- as I find that ability to very much have the "galloping things whole" vibe to it.
Related to that concept, there was some years ago there was teasing about that binding ability being shifted to green to some extent. This to me would seem like a good opportunity to try it out :P . Also, if you make it a creature of this sort, then I think you can pretty much remove all the "non" clauses from it and have it be like Acidic Slime type of thing (in that it has a wide range of possible targets) that can hit all permanents.
Speaking of which, why the nonlegendary clause to begin with?