Shagaru Magala, the Shining

Flying, lifelink
At the beginning of your endstep, you may
pay X life. If you do, put that many +1/+1
counters onto Shagura Magala.
Other creatures you control get +X/+0, where
X is equal to the number of counters on Shagura Magala.
Pay 4 life: Transform Shagura Magala.