In some case, you have to press the B button to proceed to the next phase (or to end your turn)
I'm not against using it to self mill to get a win with Jace, which sounds like it'd be a VERY good win con combined with Archmage Emeritus, Thousand-Year Storm and Veyran, Voice of Duality, or to fill the graveyard for me to cheat something out with Narset, but I wouldn't really consider that ideal in that circumstance because the ideal situation (in my mind, at least) is I'm using Narset to cast something twice
Double Attribute Fusions: ( Powered Form ) Elemental HERO Chaos Level 6 - Dark ATK : 2600 DEF : 2000 Lore: 1 Dark "HERO" Monster + 1 Light "HERO" Monster This card can only be Special Summoned by shuffling the above cards you control into the Deck ( You do not use "Polymerization" ) and cannot be Special Summoned by other ways
A new card type, inspired by Final Fantasy summons like Shiva, enters the game with a lore counter, gives an instant effect, and stays for a few turns before vanishing, copying the short but strong nature of summons