Rage of the Immortals Nemesis

Most of you who plays Rage of the Immortals knows that every week there's a Epic Boss Fighter and there's a Nemesis fighter who the Epic Boss is weak against.  This fighter will be 3X more effective towards the Epic boss where there's a bonus in the defence and attack.  Unfortunately, after a new epic boss is rolled out, it becomes useless.

However, I just discovered that when you train that nemesis back into the epic boss.  There's a bonus exp boost, very similar to the training boost.  I created a video to do a comparison.  I hope that helps.

As a summary, don't waste your nemesis into a Rare fighter of the same element because you'll miss out a huge amount of bonus exp.