I'd like for SiO to reverse detrimental debuffs; vuln up to vuln down, damage down to damage up, damage over time to heal over time, silence to haste, and so forth. Another idea is for SiO to siphon one debuff from a party member, up to 5 players, and draw it into the warrior. Pressing the skill button again, the warrior would, then, spend 10 beast gauge, per debuff, to immediately reverse it to a beneficial buff. Recast would be 90s, maybe.