Overtrick v0.2: New "Special Card" Mechanics

Big gameplay update: special abilities are now separate cards!

This allows players to be much more strategic in using them. Before the update, special abilities were attached to normal playing cards, and would trigger when you played these cards as part of a trick. This often restricted when you could use abilities (since you have to follow suit) and forced you into awkward choices (save a high card for later, or utilize an ability now).

The special ability cards should also help change player strategy. Some of my favorite examples:

• Perfect Harmony: +1x trick multiplier when you and your partner alternate wins. Rewards you for carefully lining up the perfect alternating streak!
• Clubs Overload: Converts current trick and all cards played in the trick to Clubs. Has a surprising array of uses, including winning a trick you'd otherwise lose or preserving a trump card.

Feedback and suggestions welcome!