Defender Shield

When equipped to any creature, that creature
(armor or human) gain a +0/+4 counter and invincibility until unequipped. If you control no creatures, then equip this to a enemy creature of choice, giving it a -4/-4 until unequipped by the casting player and/or destroyed.
"...Destiny is calling me, go down in
history. Everyday I fight to be, Legendary!" - Skillet