Leona is my favorite Support in the game and I feel the need to share any of my knowledge of Leona to anyone who reads this guide. Her play style makes Supporting feel like a new position. I used to think supporting was boring until Leona came into my life. The concept of latching onto your victim and keeping them there for your ADC to get the kill is fun in every way, and her natural tankiness can aid her in surviving turret dives.

x2More Armor means more surviving ADC shots and armor quints gives you a solid 4.3 armor.

x1 Movement speed never hurts, add this to the "Fleet of foot" mastery and you have a solid +3% movement speed.

x6 Hybrid pen causes you to deal more damage with your abilities and basic attacks.

x3 Again armor is essential to Leona for ADC shots and turret dives.

x6 Magic resist isn't needed in lane, but it is needed later in the game. Scaling magic resist is the best choice for this scenario.

x3 Again more armor is great.

5 into offense:

4 points into sorcery for the extra cooldown early game.
1 point into Expose weakness because it increases your ADC's damage while you're attacking the enemy support or ADC.

22 into Defense:

2 points into Block helps your tankiness against the enemy ADC, early game
2 points into Enchanted Armor helps late game (think about this, frozen heart gives 100 armor, with this mastery, you get a free 5 armor)
1 point into Unyielding helps your tankiness from the enemy ADC and support, early game
3 points into Veteran Scars helps your early game tankiness
1 point into Oppression helps a lot because it decreases all damage taken by enemies who have a movement impairment.
1 point into Juggernaut helps early game and late game (excluding Leona's overall health, just from a Randuin's omen, this mastery gives her a free 15 health)
3 points into Hardiness gives her more armor to go with the rune page
3 points into perseverance gives her a good amount of sustain throughout the game
1 point into reinforced armor helps survive against the enemy ADC, Tryndamere, or Yasuo
3 points into Legendary Guardian helps a lot in team fights (in a full fledged team fight you gain 20 armor and 10 magic resist)
1 point into Tenacious gives you free tenacity and will stack with Mercury's treads

3 into utility:

3 points into Fleet of foot will give you more movement speed and stacks with your movement speed quint

Pros:

- Extremely tanky just from her Eclipse
- Featured in "A new Dawn" cinematic
- Completely dominates lane, if the ADC has half a brain
- Can build no damage and has a good amount of burst
- Passive gives more damage output for the ADC in lane
- Most of her skins are amazing (Pool Party <3)

Cons:

- A passive Leona is a useless Leona
- She can't play passive
- If your ADC says "I just want farm, don't engage"; you might as well be afk
- Is countered by many of the popular supports and ADCs
- Her play style doesn't go well with the common ADCs (Tristana, Kog'maw, Vayne, etc.)

Max Shield of Daybreak (Q) as quickly as possible because it will give you a stun much quicker and can increase the lock down potential.

Second is Eclipse (W) as it gives you more defenses

Zenith Blade (E) should be maxed last because you will always have the ability to get to your target with rank 1 Zenith Blade it makes no game changing difference if you max it last or first.

Get Solar Flare (R) ASAP (6, 11,16). It gives amazing team fight potential and brings even more lock down to a team fight.

Mercury's treads brings tenacity and extra magic resist, which are both amazing things to have on Leona.

Iceborn Gauntlet gives an amazing slow, good amount of armor, a solid 15% cooldown, and Ap which gives more damage in your combo.

Randuin's Omen is one of the most standard tank items, it gives a great amount of armor and health, and its passive helps against basic attack champions.

Frozen Heart gives a great amount of cooldown and armor, and an amazing passive for team fights.

Banshee's Veil gives a great passive, a good amount of health, and a good amount of magic resist.

Literally the weirdest item to put onto Leona, but it's amazing on her. It gives decent health and a great passive for team fights (when you get that 5 man ult, their health is going to start shredding right before the fight starts). Because of Leona's constant CC, you're going to constantly shred 6% of the enemy's current health.

Spells needed:
Well needed for laning phase and even for later in the game. Exhaust helps against AD assassins and ADCs, and can help get the kill or run away.

Needed for escaping or engaging, the Flash/Zenith Blade combo is extremely strong to secure a kill or engage a team fight.

All the other spells...


... Are not needed (and some are useless on Leona)

Leona goes well with almost any team comp because she can bring a world of CC to a team fight and as long as your team does damage, you can win any team fight with the lock down Leona has.

For instance lets pick a team that has Leona, and all the other champs have no hard CC

Top Lane: Vladimir
Mid Lane: Katarina
Jungle: Master Yi
ADC: Twitch
Support: Leona

If you take Leona away, the team wouldn't nearly be as good.
Leona's lock down CC keeps the enemy team in place while her team takes a dump on them. You don't need a team full of CC to have an amazing team fight.

WARD... WARd... WArd... Ward... ward
<---- See this? (get it?)

Seriously though ward and I mean the 75 gold ward or the 100 gold Vision Ward dont only use the trinket.

Sight is knowledge, Knowledge is power, having knowledge and power over the enemy team causes more wins. If you can always determine where the enemy jungler is or if he is coming for a gank, a simple ward can save your life and waste his time.

Leona is a tanky support who can carry games really easy. Her CC keeps the enemy team in place while her team does damage. A good Leona knows what to do and when to do it, and honestly even if her team is a bunch of lab monkeys who have to play League as an assignment, she can still win team fights. Her biggest fear in team fights is if she is the only one who shows up to the fight. Leona is an awesome support who makes supporting feel fresh and new. With the right build, she can be a super tank, while dishing out a significant amount of damage.

And to conclude the guide, I give you three riddles answer them in the comments along with your summoner name (NA) and you get an Air-five... Actually, I would love to add you :D

First One:
I view the world in little space,
Am always changing place;
No food I eat, but, by my power,
Procure what millions do devour.

Second one:
I am round, but not always around.
I'm light sometimes and dark sometimes.
Everyone wants to walk all over me, but I don't know why.
What am I?

Third one:
I live above a star, and yet I do not burn
I have eleven neighbors, and yet none of them turn
I am visited in sequence, first or last or in between
PQRS are my initials, now tell me who I am.