Runic magic items are effectively magic items tailored to your own requirements by combining different abilities.
A Dwarf character can carry runic magic item and the total points value of these runic items is limited in the same way as normal.
It is important to remember that a runic item is no different in principle to any other magic item, and all the usual rules for magic items still apply. For example, if a creature cannot be harmed by an ordinary weapon but can be harmed by a magic weapon, then obviously a runic weapon will affect it too. All the rule that apply to the possession and use of magic items also apply to runic magic items.