edhseer Commander synergy, explained
Land
Add {C}.
activated {T} — adds 1 mana
Put two +1/+1 counters on this land. Then you may have it become a 0/0 Elemental creature until end of turn. It's still a land.
activated {4} — puts 2 counters on it
activated {4} — turns something into a creature
Causes: put a counter on anything.
Cares about: nothing.
a land enters the battlefield — 1,560 cards in the game can cause this (Crawling Barrens is one).
When Crawling Barrens enters:
199 other cards care about it too. These are the ones with the most connections.
anything gets a counter — 4,415 cards in the game can cause this (Crawling Barrens is one).
7 other cards care about it too. These are the ones with the most connections.