Basri's Lieutenant + Cathars' Crusade + Phyrexian Altar

W identity

Commander legal

The 3 combo pieces

• Basri's Lieutenant
• Cathars' Crusade
• Phyrexian Altar

What must be in place

You control at least one additional creature with at least one +1/+1 counter.

How to execute it

1. Activate Phyrexian Altar by sacrificing a creature with at least one +1/+1 counter, adding one mana of any color.
2. Basri's Lieutenant trigger, creating a 2/2 Knight token.
3. When Knight token enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control.
4. Repeat.

What the combo produces

• Infinite +1/+1 counters on creatures you control
• Infinite colored mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers