Coin Flipping

You flip a coin and receive a random effect: an attack boost or a defense boost. Heads: P. Atk. +5% M. Atk. +10% Atk. Spd. +5% Cast. Spd. +5%. Tails: P. Def. +5% M. Def. +6% Resistance to de-buffs +10% Incoming Heal Power +10%. Duration: 300 sec. Can't be used for 30 sec after joining a party. Effect only works while in a party with the caster.