Elemental Mastery + Galvanic Juggernaut + Phyrexian Altar

R identity

Commander legal

The 3 combo pieces

• Elemental Mastery
• Galvanic Juggernaut
• Phyrexian Altar

What must be in place

Elemental Mastery attached to Galvanic Juggernaut.
Galvanic Juggernaut does not have summoning sickness.

How to execute it

1. Activate Galvanic Juggernaut by tapping it, creating five 1/1 Elemental creature tokens with haste.
2. Activate Phyrexian Altar by sacrificing an Elemental, adding one mana of any color.
3. The Elemental dies, triggering Galvanic Juggernaut, untapping Galvanic Juggernaut.
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers