When casting a card with Void Rush's cost reduction, how do additional costs (like Blood Rush's repeat cost) interact with the reduction?

Ruling: Cost increases apply first, then cost reductions apply. When casting Blood Rush with repeat using Void Rush, you first increase the cost from 1 energy to 2 energy for the repeat, then Void Rush reduces it to 0 energy.

Sequence:

• Step 1: Apply cost increases (repeat adds +1 energy to Blood Rush)
• Step 2: Apply cost reductions (Void Rush reduces the total cost)