Option to Wipe Costs/States From Features

[GordonsKitchen]

A feature lets you define a mana cost, such as when you need to cast a spell. However, these costs are frequently inaccurate if the normal card state isn't used. For example, if the default for Eternal Witness is for it to be in your hand, it'll have a cost of {1}{G}{G}. However, if for another combo you start with it on the battlefield, the {1}{G}{G} isn't needed.

What I'd suggest is when the "Starting Location Override" option is checked, add another option to wipe mana costs from that feature. So in the above example, when I change the state of the Eternal Witness feature, I can tell the generator to not add the mana cost, as it's unnecessary.

Another thing that'd be useful is an option to wipe the starting card state. A good case of this being useful would be mana dorks (which have "without summoning sickness" by default) if a haste enabler is included.

[ldeluigi]

I'd rather simplify if possible:

what if I simply wipe the mana needed whenever the starting locations override doesn't match exactly the supposed starting location of the card(s)?

[ldeluigi]

For mana dorks, I suggest to make two features: "mana dork without summoning sickness" and "mana dork", then make sure to require the first on a normal basis and the latter when a haste enabler is involved