Channel Lightning Valley is a M Lightning Instant - Aura card from Flesh and Blood (Rosetta, ROS).
M
Rosetta (ROS)
Card Text
The first time you deal damage to an opposing hero each turn, draw a card.
Channel Lightning - At the beginning of your end phase, put a flow counter on this, then destroy it unless you put a Lightning card from your pitch zone on the bottom of your deck for each flow counter on it.