Situational Items:

• 

Thornmail
Win: 53.2% | Pick: 10.5%
350 Health
60 Armor

Thorns: When struck by an Attack, deal (10 + 10% bonus Armor) magic damage to the attacker and apply 40% Grievous Wounds for 3 seconds if they are a champion. Immobilizing enemy champions also applies 60% Grievous Wounds for 3 seconds.

Grievous Wounds reduces the effectiveness of Healing and Regeneration effects.

• 

Randuin's Omen
Win: 52.9% | Pick: 3.8%
250 Health
80 Armor
10 Ability Haste

Active: Humility: Briefly Slow nearby enemies and reduce their Attack Damage by 10% and Critical Strike Damage by 20% for 4 seconds (60s cooldown).

Rock Solid: Reduce incoming damage from Attacks by up to (0.5% max Health), capped at 40% of the attack's damage.

• 

Knight's Vow
Win: 75% | Pick: 3.6%
400 Health
10 Ability Haste
300% Base Health Regen

Active - Pledge: Designate an ally who is Worthy (60s cooldown).

Sacrifice: While your Worthy ally is nearby, redirect 15% of damage they take to you and if they have less than 50% Health gain 35% Move Speed when running towards them.

Champions can only be linked by one Knight's Vow at a time. Damage redirection stops if you have less than 30% Health

• 

Zeke's Convergence
Win: 80% | Pick: 2.3%
250 Health
25 Armor
250 Mana
20 Ability Haste

Active - Conduit: Designate an Accomplice (60s cooldown).

Convergence: For 8 seconds after you Immobilize an enemy, your Accomplice's Attacks ( On-Hit) and Ability hits apply an additional (30 - 70 (based on level) + 1.5% Health + 7.5% Ability Power) magic damage to that enemy.

Champions can only be linked by one Zeke's Convergence at a time.

• 

Titanic Hydra
Win: 75% | Pick: 1.8%
30 Attack Damage
500 Health

Colossus: Gain bonus Attack Damage equal to 1% max Health.
Cleave: Attacks apply an additional (5 + 1.5% max Health) physical damage On-Hit, creating a shockwave that deals (40 + 3% max Health) physical damage to enemies behind the target.

Deals 75% for Ranged users. On-Hit damage is also applied to Structures.

• 

Sterak's Gage
Win: 85.7% | Pick: 1.6%
50 Attack Damage
400 Health

Bloodlust: Dealing damage to or taking damage from a champion grants a stack, restoring (2% max Health | 1.2% max Health for Ranged champions) over 6 seconds.
Lifeline: Upon taking damage that would reduce your Health below 30%, gain a 100 Shield (increased by (8% max Health | 4.8% max Health for Ranged champions) per stack of Bloodlust) for 4 seconds (60s cooldown).

Bloodlust stacks up to 5 times; 1 per champion. Healing and bonus shielding reduced to 60% for Ranged users.