Icarus Xerxes I, King of Kings

Icarus Xerxes I, King of Kings, enters the battlefield with X +1/+1 counters on it, where X is equal to the power of the creature with the highest power on the battlefield

{x}: Remove X counters from target creature, then add X of the same counters to target creature

{x}{x}: Remove X counters from target player or planeswalker, then add X of the same counters to target player or planeswalker

Ruler to millions, brother to one