Do base sizes matter in 40k?

No, in game bases do not matter. You can use whatever base you want, but don’t go overboard with size differences. There’s no advantages or disadvantages....

How do you number a hex grid?

In the pointy orientation, a hexagon has width w = sqrt(3) * size and height h = 2 * size . The sqrt(3) comes from sin(60°). The horizontal distance betwe...

How to prevent damage in mtg?

Preventing damage does not untap any creature, nor does it stop the attack; all it does is to negate damage that would have been dealt. Your creatures wil...