Rope Vine Tangle

Reverberation {1}{g} (At the beginning of your
upkeep, you may pay this permanent's reverberation
cost. If you don't, sacrifice this permanent.)

At the beginning of your pre-combat main phase,
add a charge counter to Rope Vine Tangle.

{t}: Add an amount of {g} equal to the number of
charge counters on Rope Vine Tangle.