Linvala, Keeper of Silence

Flying
Activated abilities of creatures your opponents control can't be activated.

Serra's Emissary

Flying
As Serra's Emissary enters, choose a card type.
You and creatures you control have protection from the chosen card type.

Flying, vigilance, indestructible
Other permanents you control have indestructible.

Flying, first strike, lifelink
Other Angels you control get +1/+1 and have lifelink.

Flying
Other nonblack creatures you control get +1/+1.
Players can't pay life or sacrifice creatures to cast spells or activate abilities.

Flying
You, planeswalkers you control, and other creatures you control have hexproof.
{4}{G}{G}: Put a +1/+1 counter on each creature you control.

Flying, hexproof
Spells and abilities your opponents control can't cause you to sacrifice permanents.