Angelic Observer

This creature enters tapped.

Target creature gets +1/+0 and gains first strike until end of turn. Scry 1.

When this creature enters, put a +1/+1 counter on target creature.

Whenever this creature attacks, this creature and up to one other target creature you control both gain your choice of first strike or lifelink until end of turn.

Put a shield counter on target creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Scry 1.

4G/U: This creature has base power and toughness 5/5 until end of turn.

Exile target nonland permanent. Its controller creates a Treasure token. (It's an artifact with "T, Sacrifice this token: Add one mana of any color.")

Exile target nonland permanent. Its controller creates a Treasure token. (It's an artifact with "T, Sacrifice this artifact: Add one mana of any color.")