What are the critical Photoshop tools?

The essential photoshop tools are:-

• Rectangular Marquee Tool (M)
• Red Eye Tool (J)
• Gradient Tool (G)
• Eraser Tool (E)
• Clone Stamp Tool (S)
• Brush Tool (B)
• Healing Brush Tool (J)
• Slice Tool (K)
• Crop Tool (C)
• Magic Wand Tool (W)
• Polygon Lasso Tool (L)
• Move Tool (V)