5 cards where the set is “m13” and the name includes “ring” and the card types include “artifact”

Ring of Evos Isle (Magic 2013 #211)

Ring of Evos Isle {2}

Artifact — Equipment

{2}: Equipped creature gains hexproof until end of turn. (It can’t be the target of spells or abilities your opponents control.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it’s blue.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Illustrated by Erica Yang

Standard
Alchemy
Pioneer
Historic
Modern
Brawl
Legacy
Timeless
Vintage
Pauper
Commander
Penny
Oathbreaker
Ring of Kalonia (Magic 2013 #212)

Ring of Kalonia {2}

Artifact — Equipment

Equipped creature has trample. (It can deal excess combat damage to the player or planeswalker it’s attacking.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it’s green.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Illustrated by Erica Yang

Standard
Alchemy
Pioneer
Historic
Modern
Brawl
Legacy
Timeless
Vintage
Pauper
Commander
Penny
Oathbreaker
Ring of Thune (Magic 2013 #213)

Ring of Thune {2}

Artifact — Equipment

Equipped creature has vigilance. (Attacking doesn’t cause it to tap.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it’s white.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Illustrated by Erica Yang

Standard
Alchemy
Pioneer
Historic
Modern
Brawl
Legacy
Timeless
Vintage
Pauper
Commander
Penny
Oathbreaker
Ring of Valkas (Magic 2013 #214)

Ring of Valkas {2}

Artifact — Equipment

Equipped creature has haste. (It can attack and {T} no matter when it came under your control.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it’s red.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Illustrated by Erica Yang

Standard
Alchemy
Pioneer
Historic
Modern
Brawl
Legacy
Timeless
Vintage
Pauper
Commander
Penny
Oathbreaker
Ring of Xathrid (Magic 2013 #215)

Ring of Xathrid {2}

Artifact — Equipment

{2}: Regenerate equipped creature. (The next time that creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

At the beginning of your upkeep, put a +1/+1 counter on equipped creature if it’s black.

Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Illustrated by Erica Yang

Standard
Alchemy
Pioneer
Historic
Modern
Brawl
Legacy
Timeless
Vintage
Pauper
Commander
Penny
Oathbreaker

The message was clear to Sorin—time to search for something else.