Mirran swords
The Mirran Swords are a group of cards featuring equipment artifacts that provide +2/+2, protection from two Colors, have a triggered ability that triggers when the sword's equipped creature deals combat damage to a player, and equip for 2 mana. The sword's triggered ability will offer two effects that come from the same two colors that the sword gives its equipped creature protection against. At first, the swords were released across sets that featured Mirrodin and New Phyrexia and only offered protection from enemy colors but now, more swords featuring allied colors are being released starting with Modern Horizons. Some swords have been reprinted in the Masters series, in Masterpiece Series, and even as judge Promotional cards. While many swords have received different art, Chris Rahn has created a piece of art for each sword so far.
Allied Color Swords
Sword of Truth and Justice  
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| Truth: Similar to Contentious Plan
Justice: Similar to Basri's Solidarity |
Sword of Sinew and Steel  
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| Sinew: Similar to Hero's Downfall
Steel: Smelt |
Enemy Color Swords
| Sword of Light and Shadow
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| Light: Healing Grace
Shadow: Disentomb |
Sword of Feast and Famine 
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| Feast: Early Harvest
Famine: Skull Fracture |
| Sword of Body and Mind
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| Body: While there is no Green card that solely creates a 2/2 green Wolf creature token, it is a green ability that has appeared on multiple Green cards
Mind: Similar to Tome Scour |
| Sword of Fire and Ice
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| Fire: Shock
Ice: Obsessive Search |
| Sword of War and Peace
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| War: While there is no Red card that solely deals damage to an opponent equal to the number of cards in their hand, it is a red ability that has appeared on multiple Red cards.
Peace: Similar to Scent of Jasmine |
Other swords that follow the Mirran sword template
This sword was first featured as a Hasbro promotional card, but then printed in Unstable. Like the Mirran Swords, it gives +2/+2, gives protection from two creature types (instead of colors), has a triggered effect on combat damage to a player, and has an equip cost of 2.