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: 💧 Water and 🌍 Earth

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

Step 5: 🌱 Plant and 💧 Water

And then, combine 🌱 Plant and 💧 Water to create 🐊 Swamp

Step 6: 🌱 Plant and 🌬️ Wind

As next step, combine 🌱 Plant and 🌬️ Wind to create 🌼 Dandelion

Step 7: 🌊 Wave and 🌱 Plant

Combine 🌊 Wave and 🌱 Plant to create 🌊 Seaweed

Step 8: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 9: 🌊 Lake and 🌊 Lake

Combine 🌊 Lake and 🌊 Lake to create 🌊 Ocean

Step 10: 🌱 Plant and 🌊 Lake

Combine 🌱 Plant and 🌊 Lake to create 🌸 Lily

Step 11: 🌼 Dandelion and 🐊 Swamp

Combine 🌼 Dandelion and 🐊 Swamp to create 🐸 Frog

Step 12: 🚗 Engine and 🌊 Seaweed

Combine 🚗 Engine and 🌊 Seaweed to create 🚤 Submarine

Step 13: 🌸 Lily and 🌊 Ocean

Combine 🌸 Lily and 🌊 Ocean to create 🧜‍♀️ Mermaid

Step 14: 🚤 Submarine and 🐸 Frog

Combine 🚤 Submarine and 🐸 Frog to create 🐸 Scuba Frog

Step 15: 🐸 Scuba Frog and 🧜‍♀️ Mermaid

Combine 🐸 Scuba Frog and 🧜‍♀️ Mermaid to create 🧜‍♀️ Scuba Mermaid