D&D 5E 3E Collision weapon property in 5E

[Quartz]

I was re-reading the Order of the Stick and got to wondering about how to model the Collision weapon property in 5E. I came up with rolling the base damage dice with Advantage. E.g. for a greataxe you roll 2d12 and take the better.

What do you think? How have you done it?

 

[Dave Goff]

Mostly hit like because I had just opened OotS right before I opened this thread.

 

[NotAYakk]

On a 1, take max damage on the die.