They're generally written "[Cost]: [Effect]." Some keyword abilities, like equip, are activated abilities and they have colons in their reminder text
Reckless Endeavor Brass's Bounty has its moments, but I prefer Reckless Endeavor at this cost
As an example of how weird things can get, the MTG Unfinity card Form of the Approach of the Second Son turns the real-life player into a card - they must balance the rest of their deck on their head, and if they manage to eventually draw themselves, they win
Asinine Antics No more threats Asinine Antics is a four-mana Blue sorcery that puts a Cursed Role token aura on every creature your opponents control
While more traditional mana ramp for a color like green often comes in the form of proactively putting additional lands into play, white ramp is most often either reactive and based upon the actions of your opponent , or an equalizer that only functions if you have access to fewer resources than your opponents
You get to untap your lands and make even more plays
