Helios, Star Child

Lifelink
When Helios, Star Child enters the battlefield,
remove all counters from all creatures.
Creatures cannot have power or toughness
greater than their base power and toughness.
Creatures cannot have counters placed on them.
Whenever you draw a card, you gain 2 life.
All creatures lose double strike and cannot have
or gain double strike. The same is true for
deathtouch and trample.