edhseer Commander synergy, explained
Land — Cave
This land can't be blocked.
static — restricts what can block it
Add {C}.
activated {T} — adds 1 mana
Two target creatures you control that share a creature type can't be blocked this turn.
activated {4}, {T} — restricts what can block it
Causes: nothing.
Cares about: nothing.
a Cave enters the battlefield — 18 cards in the game can cause this (Secret Tunnel is one).
a Cave it grants abilities to — 21 cards in the game can cause this.
20 other cards cause it too. These are the ones with the most connections.
a land enters the battlefield — 1,560 cards in the game can cause this (Secret Tunnel is one).
When Secret Tunnel enters:
199 other cards care about it too. These are the ones with the most connections.