wow that very impressive.
so far the only golden legendaries i found were
- juggernaut (this was my first. eventually i dusted it for 1600 cause at the time there was no news about any changes soon)
- cairne bloodhoof (i still have it. it's a decent legendary though not used in the current meta. but it's golden, so unless there is changes in the upcoming patch, i'll be keeping it)
- malygos (the one i just got. this is a good legendary used by malylocks or rogue spell bursters. i'm very reluctant to dust, but if there is full refund for 3200 dust i may have to reconsider, if only for the practical reason 2 legendaries better than 1 even if not golden. But if i don't get 3200, i'm not gonna dust this)
by the way this is my stats for this month for reaching rank 5 using secret paladin

*did it using a win streak xd

no tirion still so not too keen on trying for #1 this month. Also looking at rewards..... 20 extra dust? is like nothing

blizzard so stingy