Can I search for things that have two abillities, like searching First Strike and Deathtouch and having {Master of Cruelties} appear, but not {Acidic Slime}? Sorry if I'm not explaining this well.
Yes you can. When searching. Use the glossary. Then in the upper rightish corner there is a circle with two circles inside of it. Tap that until only the part where the two circles are overlapping. The hit the check mark. Hope I explained this good enough.
:)
Also, check 'Venn diagrams' on google or Wikipedia ;)