Step 1: 💧 Water and 💧 Water

Combine 💧 Water and 💧 Water to create 🌊 Lake

Step 2: 🌍 Earth and 🌬️ Wind

Next, combine 🌍 Earth and 🌬️ Wind to create 🌫️ Dust

Step 3: 💧 Water and 🌍 Earth

Then, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 4: 💧 Water and 🌬️ Wind

Now, combine 💧 Water and 🌬️ Wind to create 🌊 Wave

Step 5: 💧 Water and 🔥 Fire

And then, combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 6: 🌊 Wave and 🌊 Lake

As next step, combine 🌊 Wave and 🌊 Lake to create 🌊 Tsunami

Step 7: 🌫️ Dust and 🌊 Wave

Combine 🌫️ Dust and 🌊 Wave to create 🏖️ Sand

Step 8: 💨 Steam and 🌱 Plant

Combine 💨 Steam and 🌱 Plant to create 🍵 Tea

Step 9: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 10: 🌬️ Wind and 🔥 Fire

Combine 🌬️ Wind and 🔥 Fire to create 💨 Smoke

Step 11: 💨 Smoke and 🌊 Wave

Combine 💨 Smoke and 🌊 Wave to create 🏄 Surf

Step 12: 🌊 Tsunami and 💨 Steam

Combine 🌊 Tsunami and 💨 Steam to create 🚢 Titanic

Step 13: 🍵 Tea and 🏖️ Sand

Combine 🍵 Tea and 🏖️ Sand to create 🥪 Sandwich

Step 14: 🚗 Engine and 🚗 Engine

Combine 🚗 Engine and 🚗 Engine to create 🚀 Rocket

Step 15: 🏄 Surf and 💨 Smoke

Combine 🏄 Surf and 💨 Smoke to create 🏄 Surfer

Step 16: 🥪 Sandwich and 🚢 Titanic

Combine 🥪 Sandwich and 🚢 Titanic to create 🌊 Sandtitanic

Step 17: 🏄 Surfer and 🚀 Rocket

Combine 🏄 Surfer and 🚀 Rocket to create 🤖 Iron Man

Step 18: 🤖 Iron Man and 🌊 Sandtitanic

Combine 🤖 Iron Man and 🌊 Sandtitanic to create 🚢 Iron Titanic