Major Arcana: now autodraws one every 60s. If you have one already, it's discarded and a new one is drawn. Use it or lose it
Minor Arcana: now draws a Minor Arcana every 15s. Unlike Majors, you can stock an additional Minor Arcana. When one is held in reserve, the timer pauses (like capping on Lilies), so its not for holding to dump in burst, just to help prevent overcap
Playing Major Arcana is still OGCD, but Minor Arcana are GCD.
Additionally, Sleeve Draw would return, becoming a 2charge, 60s charge time action. When you use it, your currently drawn Minor Arcana becomes a Lady of it's suit. Just to make sure it's got some juice for the burst window
Now for Card effects (im not good with names):
Balance: 10% damage, 15s
Bole: 20% damage mitigation, 15s. Additionally, grants 3 stacks of Bole's Bulwark, causing the enemy that strikes the bearer of this buff to take 10% of that ally's Max HP as damage and consuming one stack.
Arrow: Grants 10 stacks of 'Arrow's Assault' (12 if the target is PhysRanged), increasing Autoattack rate by 400%. One stack is consumed for each Autoattack dealt under it's effect, and upon consuming all stacks, the Autoattack rate returns to normal.
Additionally, if the target of this card is the AST, grants 5 stacks of Arrow's Assault, speeding up the recast time of the AST to 1.5s for the next 5 GCD attacks, and making cast times of those spells instant.
Ewer: Grants 1000mp over 15s. Additionally, Grants 3 stacks of Ewer Overflowing, causing the next 3 attacks dealt by a healer to strike a second time for 100% of the spell's potency. Additional effects are not applied. This second strike cannot crit or DHit
Spear: 10% Physical damage, 15s
Spire: 10% Magic damage, 15s
A Note on Minor Arcana: Knaves, Lords, Ladies are 7 8 and 9 respectively. Due to not having a duration, these effects will last on the target until they are overwritten by another card, or KO removes them.
X of Staves: Increases the next 5 attacks dealt by the target ally by 60p. Additionally, increases the damage of the first attack dealt by target ally after this effect is applied, by 5 potency, multiplied by the face value of the arcana.
X of Rings: Deals 100p in counterattack damage each time the target ally is struck, up to 3 times. Additionally, deals an additional 5 potency, multiplied by the face value of the arcana, for the first counterattack only.
X of Knives: Causes the next 6 Autoattacks to deal a second strike for 50p. Additionally, a bonus potency equal to the arcana face value is applied to each of these bonus strikes.
if the concept of 'potency value not divisible by 5' is too much for the engine, make it 'first autoattack has bonus damage of '5 x face value'' like the rest
X of Cups: Causes the next 3 healer damage spells to cost half MP, and to strike a second time for 100p. Additional effects are not applied twice. Additionally, the first of these spells deals bonus damage equal to 5 potency, multiplied by the face value of the arcana
X of Crowns: Increases the next 5 instances of Magic damage dealt by 60p. Additionally, a bonus potency equal to the arcana face value is applied to each of these bonus strikes.
see arrow if game can't handle non-5 values
X of Irons: Increases the next 5 instances of Physical damage dealt by 60p. Additionally, a bonus potency equal to the arcana face value is applied to each of these bonus strikes. Additionally, if the target of this card is the AST, the next 5 instances of magic damage are instead considered physical, allowing them to benefit from the Spear's effect
Lastly, Astrodyne would be condensed so that rather than being three buffs with one effect each, the reward for getting more seals is still one buff, but it consolidates all previous 'reward buffs' into itself. Buff cap is already straining at the thought of these extra Minor Arcana effects. Additionally, Astrodyne's effects are lowered in potency (in my mind) because they'd be up more often. This is because I'd have Minor Arcana give seals too, leading to much higher uptime on Astrodyne