Even veterans players tends to always think a battle in 4 rounds.
If you can, try to see if you can get a win in 2 or 3 rounds (remember, you just need 5 damages and 7 damages to make 12 damages :)), your opponent will most certainly be quite surprised :)
*but..you should not play it very obviously..because when it's too obvious..i.e. you always use your better cards to finish off the job..your opponent might expect it..so he/she'll try to counter it..and it will mean your end, specially if you tried to use "fury"
*remember..not all people think the same way..people think and play differently..and the best way to play is to play it safe..unless you are sure of what you are doing, then go ahead..thinking to finish off a battle in less than four rounds is very unexpected and can get people off guard..so I say it's a nice tactic to play..^_^
Sometimes veteran players think in 4 rounds if it is the only opton for them to win. Such situations ae not exactly rare. It then often boils down to experienced players plying defensively... which might still involve 9 pillz against a single card but just as well playing a 0 pillz stop opp ability against your Kinjo.
When thinking in less than 4 rounds, always figure in what your opponent has and what options he has to play. Has he a total damage potential of 4? Well... just hit him hard once. He will have a hard time to catch up (but do NOT deal 8 damage on round one using all your pillz. What will happen? Round 2: fury, round 3: fury; round 4: fury... you took 9 damage and lose).
In short: keep your eyes open on what your opponent might do. Contrary to this very limited foe, your opponent may as well decide to cur your 3-round-KO strategy by a KO in round 2. Also watch out for mean "traps" such as damage reducers in various form (via stopping ability/bonus or plain reduction)
Experienced players tend to think that other experienced players won't use this strategy. They seem to label it as "noob" tactics. But indeed it is a formidable strategy and come tournament time, the players who finishes their matches faster usually ranks higher in the ladder. In fact, it helped me quite a lot (except for a few times when I'm too obvious hehe).
Marina, Striker, Zatman and Rubie are very nice 2nd-round "finishers", especially the first two.
They think Marina is a no-pillz damage reducer and Zatman as too high powered, let's-make-him-pass-through card. And they usually put their worst cards like Samantha with 1 pill or Flo with 1 pill to block these seemingly "un-dangerous" cards. XD
For me every game is always luck,because you don't know if you'd be drawing good cards