Pentavus
Dross Scorpion
Chromatic Orrery

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Pentavus with two +1/+1 counters on it on the battlefield).

   Steps

How does this combo work?
1
Activate Chromatic Orrery by tapping it, adding .
2
Activate Pentavus's first ability by paying 1 and removing a +1/+1 counter from it, creating a 1/1 Pentavite creature token.
3
Activate Pentavus's second ability by paying 1 and sacrificing the Pentavite.
4
When the Pentavite dies, Dross Scorpion triggers, untapping Chromatic Orrery.
5
Resolve the Pentavus ability, putting a +1/+1 counter on it.
6
Repeat.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite colored mana
Infinite sacrifice triggers
Infinite death triggers
Infinite colorless mana
Infinite card draw
Infinite draw triggers
Infinite untap of artifacts you control
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New Cards
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34%synergy
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Lands
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23%synergy
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44%synergy
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41%synergy
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39%synergy
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36%synergy
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22%synergy
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-17%synergy
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14%synergy