Efficient Construction
Myr Retriever
Scrap Trawler
Krark-Clan Ironworks

   Prerequisites

What do I need to start this combo?
Myr Retriever in your graveyard.
All other permanents on the battlefield.

   Steps

How does this combo work?
1
Activate Krark-Clan Ironworks by sacrificing Scrap Trawler, adding .
2
When Scrap Trawler dies, it triggers, returning Myr Retriever from your graveyard to your hand.
3
Cast Myr Retriever by paying 2.
4
Efficient Construction triggers, creating a 1/1 Thopter artifact creature token.
5
Activate Krark-Clan Ironworks twice by sacrificing the Thopter and Myr Retriever, adding .
6
When Myr Retriever dies, it triggers, returning Scrap Trawler from your graveyard to your hand.
7
Cast Scrap Trawler by paying 3.
8
Efficient Construction triggers, creating a 1/1 Thopter artifact creature token.
9
Repeat.

   Results

What do I get from this combo?
Infinite colorless mana
Infinite creature tokens
Infinite death triggers
Infinite ETB
Infinite LTB
Infinite sacrifice triggers
Infinite storm count
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