armour

you hold a piece of armour and touch the ground, and up to 5 people  everyone around you in a 5ft radius gains AC determined on the type of armour or gain AC for yourself. this spell destroys it's components

light armour: +1 AC to everyone in radius, or +2 to self

medium armour: +2 AC to everyone in radius, or +3 to self

heavy armour: +3 AC to everyone in radius, or +5 to self

for every spell level above 3 the range increases by 1ft and you can add 1 person