AST mana problems.

[Donarudo]

stuff

Where are you seeing that 5/6 cards help you conserve mana. I am reading each card now and only 1 of those cards mentions a reduction of mana cost by 20% for 20 seconds. You can't even use time dialation on yourself to increase the timer on that.
The Balance - increases target damage dealt by 10%
The Bole - Reduces targets damage taken
The Arrow - Increases attack speed
The Spear - reduces recast timer
The Ewer - reduces MP cost
The Spire - Reduces TP Cost

Only one card directly affects our mana use. The other cards simply aid the other members by doing this it "MAY" shorten the fight. Also lets not forget even using spread, shuffle, and royal road its still random on the draw. You can't replicate your draw to effectively draw the Ewer card every time. So please anybody explain to me what I am missing on these cards that 5/6 reduce mana cost directly.