Thoughts on an Esper Creature: Etherium Sentinel

Etherium Sentinel 2WUB

Artifact Creature — Construct

Defender, lifelink

Whenever ~ would deal combat damage, you may prevent that damage. If you do, draw half that many cards, rounded up.

Discard a card: ~ gets +1/-1 until end of turn.

Knowledge is power...

2/6

I made him for the last Winner is the Judge but didn't get much feedback.