edhseer Commander synergy, explained
Land
This land enters tapped.
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return this land to its owner's hand at the beginning of the next cleanup step.
activated {1}, {T} — searches a library
activated {1}, {T} —
activated {1}, {T} —
activated {1}, {T} — bounce
Causes: search land , put a land onto the battlefield, shuffle a library, a land leaves the battlefield.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Thawing Glaciers is one).
When a land enters thanks to Thawing Glaciers:
199 other cards care about it too. These are the ones with the most connections.