Atheon, Time's Conflux

Atheon, Time's Conflux enters the battlefield with X time counters on it. At the beginning of your upkeep, put a Time counter on Atheon Time's Conflux, then if there are five or more Time counters on it, remove them all and take an extra turn after this one.
Remove a time counter from Atheon, Time's Conflux: choose one—
• Target creature gains haste until end of turn.
• Untap target creature.
• Add or remove a Lore counter from target permanent.