Passive: Backstab

Shaco deals bonus damage when he attacks an enemy from behind.
As a support, you can use this to your advantage by positioning yourself behind the enemy champion during trades.
Q: Deceive

Shaco becomes invisible and gains bonus movement speed for a short period of time.
This ability can be used to engage, disengage, or escape.
W: Jack in the Box

Shaco places a box that fears and attacks nearby enemies when they trigger it.
Use this ability to provide vision, set up traps, and protect yourself and your ally.
E: Two-Shiv Poison

Shaco throws a dagger that slows and deals damage to the first enemy hit.
This ability can be used to harass enemies and slow them down for easier trades.
R: Hallucinate

Shaco creates a clone of himself that deals reduced damage but can still apply on-hit effects.
Use this ability to confuse and deceive enemies, and to tank tower shots if necessary.

Engage Combo: Q + W + E
Use Deceive to get behind the enemy champion.
Place a Jack in the Box behind them to fear and deal damage.
Follow up with Two-Shiv Poison to slow them down and deal additional damage.
Escape Combo: Q + R
Use Deceive to go invisible and gain bonus movement speed.
Use Hallucinate to create a clone of yourself and confuse the enemy.
Run away in the opposite direction of your clone to escape safely.
Tower Dive Combo: Q + R + E
Use Deceive to get behind the enemy champion.
Use Hallucinate to create a clone of yourself and tank tower shots.
Follow up with Two-Shiv Poison to slow them down and deal additional damage.
Harass Combo: W + E
Place a Jack in the Box near the enemy champion to scare them away and deal damage.
Follow up with Two-Shiv Poison to slow them down and deal additional damage.
Tower Defense Combo: W + R
Place a Jack in the Box near your tower to protect it from incoming minions and enemy champions.
Use Hallucinate to create a clone of yourself and add more pressure to the lane.

Keep your Jack in the Box off cooldown: Your Jack in the Box is your primary tool for zoning and controlling the lane. Always have at least one box available and be prepared to use it to protect your ally or to harass the enemy.

Use your clone to scout: Your clone can be used to scout bushes and other areas without risking yourself or your ally. Send your clone ahead to check for incoming enemies or to clear vision.

Communicate with your ally: Coordination is key when playing as a support. Let your ally know when you plan to engage or when you need help, and be ready to assist them when they need it.

Learn the enemy's patterns: Watch the enemy's movements and try to predict their actions. This can help you set up traps, avoid ganks, and make better use of your abilities.

Ward and control vision: As a support, one of your most important tasks is to ward the map and control vision. Use your Jack in the Box and your clone to help protect your warding efforts and to clear enemy vision.

Be patient: Shaco support is not an easy champion to play, and it may take some time to get the hang of his abilities and combos. Be patient, practice, and don't be afraid to experiment with different playstyles to find what works best for you.

Stay safe: Shaco is a squishy champion and can be easily killed if caught out of position. Be aware of your surroundings, stay behind your ally, and don't take unnecessary risks. Your main goal is to support your ally, not to get kills or deal damage.

Use your Jack in the Box to provide vision and protect your ally from ganks.

Place a box in the bush to prevent enemies from entering it and to surprise them if they do.

Use your clone to tank damage, draw attention away from your ally, and to bait enemies into traps.