With
In Service we can opt out of Time and stay purely Stonescar, which smooths out power requirements.
Toxicology is an okay removal card but becomes excellent when it serves as a discard outlet as well.
Striding Skyline is the least impactful sentinel, but can be very explosive with
Stonescar Heirloom.
I mostly play Gauntlet, but I don't build to optimize there or anything. Just wanted to share some Unleashed inspiration, it's a really exciting set.