Builder cards have a lot of info on them. 

Here's how to read a Builder card👇

Is there something special @dekanbro needs to do to activate his cards?

Fantasy Sports with Onchain Developers. 

Scout. Build. Win. Brought to you by the builders of SUNNYs and CharmVerse.

https://scoutgame.xyz/

Have they applied to be builders? If not, they need to connect their GitHub to Scout Game to apply. You can learn more about this on the Builders tab of the app.

Building /farcastle. Tryna help humans coordinate. TANSTAAFL! https://bootleggers.wtf/

Is there something special @dekanbro needs to do to activate his cards?

https://scoutgame.xyz/u/dekan-eth