Hmm. In laymen's term it just means a tactic. A plan you have in your mind that helps you to win. So literally anything is a strategy. As an example, what if tissue paper doesn't work? Using water to wash it off instead is also a strategy.
"So if A beats B. B beats C. C beats A.
If I make a plan to go A, A, C, A. That's a strategy?"
Yes, but there are more than just A, B and C in UR. Ultimately it comes down to chance/luck, yes - undeniably; But how you play your hand against a known hand can make victory less reliant on luck.
In my opinion the first turn is the most luck based, because you don't know what your opponent plays like, you can just guess what your opponent might try to do depending on his cards and yours. Second is the most important one, because you are either at a disadvantage (less life/pillz, poisoned, etc) or have the advantage so you have to play according to that. The last 2 turns depend on the outcome of the second one: your opponent might be on a checkmate position where you just have to play your pillz correctly to win; you are dead and all you can do is hope your opponent makes a mistake because you have little or no chance to win; or you 2 are even, then it becomes most of the time a 50/50 guess.
@Medivh: too bad Kate already employed that strategy, didn't seem to work out for her, never seen Kate in top ELO or tourney lol
There is a certain amount of luck involve in playing a card, but with more calculation (and the cards to back it up), you can tilt the balance of luck
@Wrekx: I agree with yoyomoer_xD with the only exception of the first round being based on luck. it would be 80% strategy and 20% luck on the first round, case in point, you never blind-pill during the first round and pray that you win (do you? )