2016-09-20 : Activated abilities contain a colon. They're generally written “[Cost]: [Effect].” Some keywords are activated abilities and will have colons in their reminder text.

2016-09-20 : An opponent affected by Dovin Baan's emblem chooses which two of their permanents to untap, not you.

2016-09-20 : Dovin Baan's first ability can target any creature, not just one with an activated ability. It can also be activated targeting no creature at all.