I think its lower than 20%

[URwifelover]

I been at it for 4 days straight now sister after sister no ephemera

[Mazifet]

how many sisters have you killed in 4 days?

[Circle_of_Psi]

RNG

[Traumtulpe]

A 20% chance means some players will get 3 Emphemeras back to back, and others (you) will not get a single one in 10 tries. That's just Warframe for you.

[Hexerin]

With how old the content is, they really should increase the rate to at least 50% (but ideally just make every lich have its ephemera).

[(NSW)warfare3376]

I got an ephemera on my 1st ever sister meanwhile my longest drought without getting one is 23, thats just rng for u.

[SuperLuigi1025]

36 minutes ago, (NSW)warfare3376 said:

I got an ephemera on my 1st ever sister meanwhile my longest drought without getting one is 23, thats just rng for u.

Same here and I only done 2 my first Sister had an Ephemera while my second one didn't.

Wouldn't be surprised if my 3rd one didn't have one either.