Triple valor starts later today.
One bounty from Shaxx is worth 15 valor. Valor gained from bounties is also increased 3x. You get 15 bounties a day if you do them on each character.
15x15x3= 675
One loss is worth 30 valor.
One win with no streaks is 36-66 valor (it varies by rank).
Assuming you play four rounds on each character to complete your bounties, and win every other match with no win streaks you will get 1071-1251 valor a day (my math is in the spoiler). Since there are four days of triple valor left for this iron banner, using that logic you will get 4234- 5004 valor just by completing Shaxx’s daily bounties. You need 2000 valor for a reset, meaning you likely will get at least 2 of the resets you need for redrix. There’s still at least one more week this season for increased valor, meaning you could start at 0 valor and 0 resets, and still get 5 resets with minimal effort, and time in crucible. With 340 pulse rifles receiving a buff in Shadowkeep, now is the perfect time to grind for redrix.
[spoiler](36x6)+(30x6)= 216+180= 396. 396+675= 1071
(66x6)+(30x6)= 396+ 180= 576. 576+ 675= 1251 [/spoiler]
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Dunno if it's placebo or not, but I've always spam-claimed my bounties shortly after a winning game hoping that they follow the streak bonus as well.