Tom Bombadil

Pay 2 life: Put a lifelink counter on target
creature.
Pay 4 life: Put a flying counter on target
creature.
Pay 6 life: Put a Indestructible counter on target
creature.
Pay 8 life: Put a hexproof counter on target
creature.
If you are the ringbearer it costs half as much
life to activate Tom Bombadils abilities.