Temporary skill boost/Defence

Defence

Boost		Level increase	Visibility	Other info
	Defence cape	1	Visible	Activating the cape's effect will increase the corresponding skill by 1.
	Spicy stew (red spice)	±0-5	Visible	Depending on type of stew, any skill can be boosted or reduced by 0 to 5 levels randomly.
	Kebab	1-3	Visible	4% chance to do so
	Poison chalice	1, 4	Visible	Has a variety of beneficial and disastrous effects.
	Defence potion	3-12	Visible	Boosts Defence by $Level*{\frac {1}{10}}+3$. Defence boosts do not allow players to equip higher level armour.
	Sapphire glacialis (item)	4-18	Visible	Boosts Defence by $Level*{\frac {15}{100}}+4$. Must be used on another player. Boost affects the player it is used on. Acquired from the Hunting skill.
	Super defence	5-19	Visible	Boosts Defence by $Level*{\frac {15}{100}}+5$. Reduces the chance of receiving damage. Defence boosts do not allow players to equip higher level armour.
	Divine super defence potion	5-19	Visible	Acts as a super defence potion. Natural stat draining for Defence is disabled for 5 minutes, meaning the player's Defence will stay fully boosted. After the 5 minutes are over, Defence level will be restored to its base level.
	Battlemage potion	5-19	Visible	Boosts Defence by $Level*{\frac {15}{100}}+5$. Allows for the use of higher level magical spells.
	Bastion potion	5-19	Visible	Boosts Defence by $Level*{\frac {15}{100}}+5$. Boosts Ranged by $Level*{\frac {1}{10}}+4$.
	Saradomin brew	2-21	Visible	Boosts Defence by $Level*{\frac {1}{5}}+2$ and Hitpoints by $Level*{\frac {15}{100}}+2$. Reduces Attack, Strength, Magic and Ranged levels by $Level*{\frac {1}{10}}+2$. Hitpoints can rise above normal level with the boost.
	Draynor Manor Cabbage	1 or 2	Visible	Restores 2 Hitpoints.
	Super combat potion	5-19	Visible	Acts as a super attack, super strength, and super defence potion in one dose.
	Divine super combat potion	5-19	Visible	Acts as a super combat potion. Natural stat draining for Attack, Strength, and Defence is disabled for 5 minutes, meaning the player's combat stats will stay fully boosted. After the 5 minutes are over, affected stats will be restored to their base level.
	Overload	5-19	Visible	Boosts combat stats by $Level*{\frac {15}{100}}+5$ (excluding Hitpoints and Prayer). The boost is reapplied every 15 seconds for 5 minutes. Also damages the player for 50 Hitpoints. (This lost health is refunded after the overload ends.) Only usable within the Nightmare Zone or within the Chambers of Xeric