Sentinel of the Eternal Watch (ORI-30)

Mana cost
Mana value	6.0
Type	Creature — Giant Soldier
Rarity	uncommon
Colors	W
Power / Toughness	4 / 6
EDHREC rank	17132

Vigilance (Attacking doesn't cause this creature to tap.) At the beginning of combat on each opponent's turn, tap target creature that player controls.

The portcullis is superfluous.