Drained Crystal

Skeksis creatures under your control gain
ten +1/+1 counters. At the beginning of
each upkeep, remove a +1/+1 counter until
all counters created this way are removed.
For each Drained Crystal card in your graveyard,
casting Drained Crystal produces two less +1/+1
counters.
Today, once more, they will replenish themselves,
cheat death again, through the power of their source,
their treasure, their fate, the Dark Crystal.