There's been times when my opponent has had to spend a lot of meter to win in the second round. When this happens I feel no shame in letting mine stockpile then end the round intentionnally with a self inflicted blood ball to take it in the 3rd round. This happens surprisingly often and I think it's legit.
No, of course you aren't looking to lose any rounds but it does happen to work out where a breaker wouldn't make sense, however you could see that you have meter advantage but not life advantage. If there is an advantage in ending the round by suicide I say go for it. Skarlet is the only character that can do this so why not use it.
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