Step 1: 💧 Water and 💧 Water

Combine 💧 Water and 💧 Water to create 🌊 Lake

Step 2: 💧 Water and 🌬️ Wind

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

Step 3: 🌍 Earth and 🌬️ Wind

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

Step 4: 🌍 Earth and 🔥 Fire

Now, combine 🌍 Earth and 🔥 Fire to create 🌋 Lava

Step 5: 💧 Water and 🌍 Earth

And then, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 6: 💧 Water and 🔥 Fire

As next step, combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 7: 🌊 Wave and 🌊 Lake

Combine 🌊 Wave and 🌊 Lake to create 🌊 Tsunami

Step 8: 🌫️ Dust and 🌊 Wave

Combine 🌫️ Dust and 🌊 Wave to create 🏖️ Sand

Step 9: 💨 Steam and 🌱 Plant

Combine 💨 Steam and 🌱 Plant to create 🍵 Tea

Step 10: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 11: 🌋 Lava and 🌍 Earth

Combine 🌋 Lava and 🌍 Earth to create 🪨 Stone

Step 12: 🌱 Plant and 💧 Water

Combine 🌱 Plant and 💧 Water to create 🐊 Swamp

Step 13: 🌊 Tsunami and 💨 Steam

Combine 🌊 Tsunami and 💨 Steam to create 🚢 Titanic

Step 14: 🍵 Tea and 🏖️ Sand

Combine 🍵 Tea and 🏖️ Sand to create 🥪 Sandwich

Step 15: 🪨 Stone and 🚗 Engine

Combine 🪨 Stone and 🚗 Engine to create 🚂 Steamroller

Step 16: 🚢 Titanic and 🐊 Swamp

Combine 🚢 Titanic and 🐊 Swamp to create 🐊 Swamp Thing

Step 17: 🚂 Steamroller and 🥪 Sandwich

Combine 🚂 Steamroller and 🥪 Sandwich to create 🥪 Panini

Step 18: 🥪 Panini and 🐊 Swamp Thing

Combine 🥪 Panini and 🐊 Swamp Thing to create 🥪 Panini Thing