I've never seen this feat used in play, but I was reading it and I think it is going to be WAY, WAY powerful:
Prerequisite: 4th Level, Spellcasting Feature
You have learned to channel your magic through a deck of cards. You can use a card deck as your spellcasting focus, and you gain the following benefits:
Card Tricks. You learn the Pretidigitation cantrip and can use it to create illusions that duplicate the effects of stage magic. When you use Prestidigitation in this way, you can conceal the verbal and somatic components of the spell as ordinary conversation and card handling.
Hidden Ace. When you finish a long rest, you can choose one spell from your class’s spell list and imbue that spell into a card. The chosen spell must have a casting time of 1 action, and it must be a level for which you have spell slots. The card remains imbued with this spell for 8 hours. While the card is imbued with the spell, you can use a bonus action to flourish the card and cast the spell within. The card then immediately loses its magic.
Card Tricks is not that great and Hidden Ace is good in tier 1 and 2 but not OP. I would rate it as a B tier in levels 1-4, an A in levels 5-8, S in levels 9 and 10. But then once you get 6th level spells it starts to get out of hand.
If I think of an 18th level Cleric or Wizard - I would get a free cast of any 9th level spell on my list AND get to cast it as a bonus action. If I had 1 level of Cleric I could pick a 9th level Cleric spell? Is this way OP in play like it seems to be?
Prerequisite: 4th Level, Spellcasting Feature
You have learned to channel your magic through a deck of cards. You can use a card deck as your spellcasting focus, and you gain the following benefits:
Card Tricks. You learn the Pretidigitation cantrip and can use it to create illusions that duplicate the effects of stage magic. When you use Prestidigitation in this way, you can conceal the verbal and somatic components of the spell as ordinary conversation and card handling.
Hidden Ace. When you finish a long rest, you can choose one spell from your class’s spell list and imbue that spell into a card. The chosen spell must have a casting time of 1 action, and it must be a level for which you have spell slots. The card remains imbued with this spell for 8 hours. While the card is imbued with the spell, you can use a bonus action to flourish the card and cast the spell within. The card then immediately loses its magic.
Card Tricks is not that great and Hidden Ace is good in tier 1 and 2 but not OP. I would rate it as a B tier in levels 1-4, an A in levels 5-8, S in levels 9 and 10. But then once you get 6th level spells it starts to get out of hand.
If I think of an 18th level Cleric or Wizard - I would get a free cast of any 9th level spell on my list AND get to cast it as a bonus action. If I had 1 level of Cleric I could pick a 9th level Cleric spell? Is this way OP in play like it seems to be?