Hardest Defense

Just for fun - Who has the hardest defense you have fought? 

One rule when picking: this person cannot be in the same alliance as you

Give them a shout out on here for a job well done on base design

Please keep in mind everyone has their own opinion and please no pictures of defenses

My pick goes to XavierL - my old Omnipotent member. Great job, I still struggle and die once or twice going through yours. Nice placement of Prometheus towers