This event is good.

You will get prize in the box and secondary prize from event draw.

If your RNG is godlike you will get rainbow.

Only use keys that's enough to get box i.e. if you have 170 only use 50 keys. save the rest for next one, unless u can afford a little extra for 200.

Is it just me or have they nerfed the rates a while ago to reduce the higher lvl runes and on top of that have they recently made it even less likely to get decent Ini runes? I spent 350+ and got 1 lvl 4 Ini and a few other lvl 4s and a couple 5s but looking at others they are also getting almost no Ini runes literally except one and then a bunch of other higher lvl ones.

That's what I did. thank you very much for the advice.