Rune: Rune is a subtype for aura enchantments, which allow them be attached to a creature or object and boost both equally
Sometimes they will have an additional cost associated with them, while others will give you different options to choose from
Yes Man, Personal Securitron is some nice repeatable draw that also nets a treasure, and Seize the Spotlight will nearly always be a free draw three, because otherwise youre going to be getting value and treasures
This process helps keep the game accessible to new players, and keeps the list of cards available from growing so large that the game overall becomes unbalanced
Note that this is a cast trigger, so you'll draw before it resolves
White's removal is excellent with everything from O-rings to sweet targeted removal for any permanent and auras like Sheltered by Ghosts never hurt either