Sindrix, The Ever Consuming

When Sindrix, The Ever Consuming enters the battlefield, Put {x}+1/+1 counters and {x} Spawn counters
on it then deals damage equal to its power to each other creature and player

When Sindrax, the Ever Consuming dies, if it had a Spawn counter on it, Remove one Spawn counter,Then return it
to the battlefield with double the amount of +1/+1 counters

{1}{b/g}{b/g},Sacrifice Sindrax and gain life equal to double its power