The caveat is that this spell already costs five mana, so you'll likely need an excess of resources to make the most of it
And channel isn't answerable by traditional counters like Counterspell or Mystic Snake
It will be interesting to see where FF8s Zell Dincht fits in MTG beyond the Final Fantasy expansion I can see him appearing in Valakut decks
you do want to attack with Eleven to draw the card, and Rilsas abilities make it more likely that Eleven can attack and survive even in the later turns
For example, if you control Traveling Chocobo ("You may play lands and cast Bird spells from the top of your library.") and Jidoor, Aristocratic Capital is on top of your library, you can play Jidoor, Aristocratic Capital, but you can't cast Overture
(Choose any number of permanents and/or players, then give each another counter of each kind already there.) Draw a card