| Dasrak |
The rules are ambiguous. The exact wording of the rules for spell completion and spell trigger do not specify that the spells must be on your class list, only that your class must be capable of casting time. It's unclear whether a Cleric with the appropriate domain would qualify. The text is ambiguous enough that you could argue either way, or whether the text should be interpreted to mean class spell list. I'd personally say that yes you can cast from these scrolls and wands without a UMD check.