Step 1: 💧 Water and 🌬️ Wind

Combine 💧 Water and 🌬️ Wind to create 🌊 Wave

Step 2: 💧 Water and 🔥 Fire

Next, combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 3: 💧 Water and 💧 Water

Then, combine 💧 Water and 💧 Water to create 🌊 Lake

Step 4: 🌍 Earth and 🌍 Earth

Now, combine 🌍 Earth and 🌍 Earth to create 🏔️ Mountain

Step 5: 🌍 Earth and 🔥 Fire

And then, combine 🌍 Earth and 🔥 Fire to create 🌋 Lava

Step 6: 💧 Water and 🌍 Earth

As next step, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 7: 🌱 Plant and 🌊 Lake

Combine 🌱 Plant and 🌊 Lake to create 🌸 Lily

Step 8: 🌊 Wave and 🌱 Plant

Combine 🌊 Wave and 🌱 Plant to create 🌊 Seaweed

Step 9: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 10: 🏔️ Mountain and 🌊 Lake

Combine 🏔️ Mountain and 🌊 Lake to create 🏞️ Fjord

Step 11: 🌋 Lava and 🌍 Earth

Combine 🌋 Lava and 🌍 Earth to create 🪨 Stone

Step 12: 🌱 Plant and 🌬️ Wind

Combine 🌱 Plant and 🌬️ Wind to create 🌼 Dandelion

Step 13: 🌸 Lily and 💧 Water

Combine 🌸 Lily and 💧 Water to create 🐸 Pond

Step 14: 🚗 Engine and 🌊 Seaweed

Combine 🚗 Engine and 🌊 Seaweed to create 🚤 Submarine

Step 15: 🪨 Stone and 🏞️ Fjord

Combine 🪨 Stone and 🏞️ Fjord to create 👹 Troll

Step 16: 🐸 Pond and 🌼 Dandelion

Combine 🐸 Pond and 🌼 Dandelion to create 🦆 Duck

Step 17: 👹 Troll and 🚤 Submarine

Combine 👹 Troll and 🚤 Submarine to create 😜 Trollface

Step 18: 😜 Trollface and 🦆 Duck

Combine 😜 Trollface and 🦆 Duck to create 🦆 Duckface