I say the best combat strategy is to play the most pills for the character you think is the best. One you think might be the strongest or might have the best ability. Feel free to tell me in the comments what your best combat strategy is. If I can, I'll try it.
Ok, I was using card's ability to represent Strategy.
Now, to make it clear, a deck should consist of.
Stop Opp. Bonus
Stop Opp. Ability
Other Abilities Only useful when you Win the Round with Bare Power & Pills.
Or useful when you manage to survive to the Next Round without getting K.O.
1st [Attack Manipulator] to win the early Low pills fight. You can keep it last if u think ur enemy will use ALL pills and u manage to survive to use it.
1st or 2nd [Poison / Heal] these two should be put early to maximize their potential. Keep in mind that to win the round with these card, you most likely have to pill... a lot.
3rd [Power Manipulator] this should be when the enemy used some pills. If you can KO with this card, put all pill.
[Stop Opp. Ability] to stop unfair or over power ability. Life Manipulator, Pill Manipulator, Poison... You name it.
[Damage Reduction] to win or not to win, doesn't matter, just go!
[Stop Opp. Bonus] my favorite of all, sometimes Bonus can get very annoying if you overlook it.
[Protection] Ability / Bonus / Power / Damage... A very Strong Tank, Power x Pill.
[Copy] Ability / Bonus / Power / Damage... Copy cat, relies on enemy Ability / Bonus / Power / Damage.
[Defeat] Pain in the... To kill or not to kill...
[Support] Can be OP in a good pure Deck. Jungo, Rescue...
After all, it's about how you pill against how your enemy pills.
Finally, thanks Thoazol my friend.