Talk:Soundwave (3)/@comment-24021777-20131007065447

I just upgraded two fully upgraded into an Evolve Level 2

Did the Same thing again.

Then fully upgraded both Evolve 2 cards.

Then it wouldn't allow me to combine 2 x Evolve Level 2

Good to know cos, i wouldn't have been able to make a Level 4.

So you need to add Singles to achieve Level 4.