Before voting, please take a look at what these templates are.
Based on my experience, I can say that the "Shield" template is complex; I wouldn't recommend voting for it if you haven't practiced with templates much.
Regarding the "Diamond" template, I can add that I play it well; usually, I reach the final stage in 2-3 weeks, but I don't enjoy the template itself – it doesn't provide a satisfying gaming experience.

Those who have played against me on the "Diamond" map know how unpleasant it is when my hero runs out of a portal with full movement and captures a castle.

I would suggest letting a judge choose the template. I think that would be fair, and we could remove both "Shield" and "Diamond" from the list.

Who is in favor of letting a judge (chosen by lottery) select the template for round 6?