Can Vex reduce repeat costs and deflect costs, and how can a repeated Bellows Breath be played for free using 2 Vex and 1 Ezreal?

Ruling: Vex reduces the total cost of a spell, including base costs, repeat costs, and mandatory additional costs like Deflect. A repeated Bellows Breath (normally 2 energy, 2 power total) can be played for free by combining 2 Vex reductions with 1 Ezreal reduction, because players can apply cost reductions in any order and Vex's "minimum 1 energy" restriction only applies to its own reductions, not to the final cost after other effects.

Sequence:

• Start with total cost: 2 energy, 2 power (1+1 base, 1+1 repeat)
• Apply Vex reductions to eliminate both power costs (2 energy, 0 power)
• Apply one Vex reduction to energy, reducing from 2 to 1 (respecting Vex's minimum)
• Apply Ezreal's reduction to the repeat energy cost, reducing from 1 to 0
• Final cost: 0 energy, 0 power

Nuances:

• Vex's "minimum 1 energy" restriction only applies to each individual Vex's reduction, not to the final spell cost after all reductions
• Players can choose the order in which to apply cost reductions for optimal results
• Vex can reduce power costs to 0 since the minimum restriction only applies to energy
• Ezreal reduces optional additional costs (like Repeat) and has no minimum restriction
• Vex can reduce Deflect costs since Deflect is added to the spell's total cost before reductions are applied