i have noticed that some monsters have 6 runes i only have 2 and my runes building is at level 8 what do i do ?

Where are you seeing this and pkease post in the appropriate areas?

I think he's mistaking levels for slots.

Hi and welcome to forum

the max number of runes for a monster is 3 on mobile -- you may have some of them locked -- and 2 on Fb - and they will be always opened --

Now when you do pvp for example and click on a monster you may see that this monster has more than 3 ,, this is how the game show you the effect of team runes ,, So

if -A- monster have 3 speed runes and supported with 6 team speed runes form the other 2 monsters if you click on this -A- monster you will see that it has 9 runes 3 speed and 6 team speed .. the other 2 will have 6 team speed each