The selected hands for this week demonstrate correct strategy for 3-betting in a tournament scenario where you are on the Button against an open raise from a wide range in the Cutoff with a big blind ante in play. The Cutoff made a standard open raise to 2.5BBs then you 3-bet to 7.5BBs and the Cutoff calls.
Your range is completely uncapped as the 3-bettor in this spot however it is very wide including all of the strongest hands and a wide mix of broadway cards, suited connectors, suited gappers, and suited hands with significant blockers (Axs/Kxs).