Illusionist's Bracers attached to Voltaic Construct.
Scaretiller does not have summoning sickness.
Steps
1Activate Scaretiller by tapping it, adding .
2Scaretiller triggers, returning Riveteers Overlook from your graveyard to the battlefield tapped.
3Riveteers Overlook enters the battlefield, causing you to sacrifice it and search your library for a basic Mountain, Swamp or Forest and put it onto the battlefield tapped.
4Activate Voltaic Construct by paying , targeting Scaretiller.