It's part of a cycle of rare enchantment creatures from the Duskmourn MTG set which all return to the battlefield as non-creature enchantments after they're killed, making it a nightmare to remove
Then you can discard two cards at the beginning of your first main phase to return this to your hand from your graveyard, which is card disadvantage naturally but with madness, lands, discard triggers like Archfiend of Ifnir, and loads more, it's got value
Itll help you get access to the cards you want that you discarded, or your opponents may just let you keep swinging or not attack to prevent Toluz from dying
Update (3/30): All the official English card images have been added below
The grails are there when you are ready, but the entry tier is where the best value lives
Matches follow a general pattern, with many different possible outcomes