Step 1: 🌍 Earth and 🌍 Earth

Combine 🌍 Earth and 🌍 Earth to create 🏔️ Mountain

Step 2: 💧 Water and 💧 Water

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

Step 3: 🌬️ Wind and 🔥 Fire

Then, combine 🌬️ Wind and 🔥 Fire to create 💨 Smoke

Step 4: 💧 Water and 🌬️ Wind

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

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: 💨 Steam and 🌬️ Wind

Combine 💨 Steam and 🌬️ Wind to create ☁️ Cloud

Step 8: 🏔️ Mountain and 🌊 Lake

Combine 🏔️ Mountain and 🌊 Lake to create 🏞️ Fjord

Step 9: 🌱 Plant and 🌱 Plant

Combine 🌱 Plant and 🌱 Plant to create 🌳 Tree

Step 10: 💨 Smoke and 🌊 Lake

Combine 💨 Smoke and 🌊 Lake to create 🌫️ Fog

Step 11: 🌊 Wave and 🌱 Plant

Combine 🌊 Wave and 🌱 Plant to create 🌊 Seaweed

Step 12: 🌱 Plant and 🌬️ Wind

Combine 🌱 Plant and 🌬️ Wind to create 🌼 Dandelion

Step 13: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 14: 🏞️ Fjord and ☁️ Cloud

Combine 🏞️ Fjord and ☁️ Cloud to create 🌈 Rainbow

Step 15: 🌫️ Fog and 🌳 Tree

Combine 🌫️ Fog and 🌳 Tree to create 👻 Ghost

Step 16: 🚗 Engine and 🌊 Seaweed

Combine 🚗 Engine and 🌊 Seaweed to create 🚤 Submarine

Step 17: 🚗 Engine and 🌼 Dandelion

Combine 🚗 Engine and 🌼 Dandelion to create 🚁 Helicopter

Step 18: 👻 Ghost and 🌈 Rainbow

Combine 👻 Ghost and 🌈 Rainbow to create 🌈 Rainbow Dash

Step 19: 🚁 Helicopter and 🚤 Submarine

Combine 🚁 Helicopter and 🚤 Submarine to create 🚁 Helisub

Step 20: 🚁 Helisub and 🌈 Rainbow Dash

Combine 🚁 Helisub and 🌈 Rainbow Dash to create 🌈✈️ Rainbow Helisub