When playing a unit with Accelerate (like Kai'sa) via Baited Hook, can you pay the Accelerate cost to have it enter ready, and is the Accelerate cost still required?

Ruling: When playing a unit via Baited Hook, you can pay optional additional costs like Accelerate, and you must pay mandatory additional costs. Baited Hook only sets the base cost to zero.

Sequence:

• Baited Hook allows you to play the unit with base cost set to zero
• You then have the opportunity to pay additional costs (like Accelerate's 1 energy and 1 power)
• If additional costs are mandatory (like Cruel Patron's requirement to kill a unit), you must still pay them

Nuances:

• Only the base cost is set to zero by Baited Hook; all additional costs function normally
• Optional additional costs (like Accelerate) remain optional
• Mandatory additional costs must still be paid