It is a very odd mana rock, because you are spending mana to get 1 less than you spent, but I think the threat here is that it then also becomes an 8/8 that makes opponents start sacrificing permanents, which seems pretty strong, especially since it is safe from creature-based removal until you turn it on
You only need to cast a few instants or sorceries before Rite of the Dragoncaller pulls its weight
Of course, you can also use art youve already got saved to your phone, or existing Magic art (always credit the artist!)
This is pure value, and theres very little holding it back
Combining fantastic flavor and incredible mechanics, while pulling out all the stops, the Final Fantasy set was a true slam dunk
These decks win with reanimation since your graveyards always got so much stuff