When using Baited Hook to look at the top 5 cards and choose one to play, can you reveal an Undertitan to get the +2 energy?

Ruling: No, Baited Hook does not trigger Undertitan's reveal ability. Reveal is a specific limited game action that only occurs when an effect explicitly uses the word "reveal" - you cannot reveal cards from a secret zone like your deck without permission from an effect.

Nuances:

• Cards only count as revealing if they explicitly say "Reveal X cards" in their text
• Looking at cards is different from revealing them