Name: Keening Stone Cost: 6 Type: Artifact Rules Text: {5}, {T}: Target player mills X cards, where X is the number of cards in that player's graveyard. Set/Rarity: Rise of the Eldrazi rare, Commander 2016 rare, The Brothers' War Retro Artifacts rare Price: $0.28

Name: Keensight Mentor Cost: 2W Type: Creature -- Human Cleric Pow/Tgh: 1/4 Rules Text: When this creature enters, put a vigilance counter on target non-Human creature you control. {1}{W}, {T}: Put a +1/+1 counter on each creature you control with vigilance. Set/Rarity: Ikoria: Lair of Behemoths uncommon Price: $0.05

Name: Keep Out Cost: 1W Type: Instant Rules Text: Choose one -- - Keep Out deals 4 damage to target tapped creature. - Destroy target enchantment. Set/Rarity: Lorwyn Eclipsed common Price: $0.21

Name: Keeper of Tresserhorn Cost: 5B Type: Creature -- Avatar Pow/Tgh: 6/6 Rules Text: Whenever this creature attacks and isn't blocked, it assigns no combat damage this turn and defending player loses 2 life. Set/Rarity: Alliances rare Price: $0.58

Name: Keeper of the Accord Cost: 3W Type: Creature -- Human Soldier Pow/Tgh: 3/4 Rules Text: At the beginning of each opponent's end step, if that player controls more creatures than you, create a 1/1 white Soldier creature token. At the beginning of each opponent's end step, if that player controls more lands than you, you may search your library for a basic Plains card, put it onto the battlefield tapped, then shuffle. Set/Rarity: Magic Online Promos rare, The List rare, Commander Legends Promos rare, Commander Legends rare, March of the Machine Commander rare, Murders at Karlov Manor Commander rare, Fallout rare Price: $0.24

Name: Keeper of the Dead Cost: BB Type: Creature -- Human Wizard Pow/Tgh: 1/2 Rules Text: {B}, {T}: Choose target opponent who has at least two fewer creature cards in their graveyard than you do as you activate this ability. Destroy target nonblack creature that player controls. Set/Rarity: Exodus uncommon, The List uncommon Price: $0.14

Name: Keeper of the Lens Cost: 1 Type: Artifact Creature -- Golem Pow/Tgh: 1/2 Rules Text: You may look at face-down creatures you don't control any time. Set/Rarity: Dragons of Tarkir common Price: $0.04

Name: Keeper of the Light Cost: WW Type: Creature -- Human Wizard Pow/Tgh: 1/2 Rules Text: {W}, {T}: Choose target opponent who has more life than you do as you activate this ability. You gain 3 life. Set/Rarity: Exodus uncommon Price: $0.26

Name: Keepers of the Faith Cost: 1WW Type: Creature -- Human Cleric Pow/Tgh: 2/3 Rules Text: Set/Rarity: Legends common, Chronicles Foreign Black Border common, Chronicles common Price: $0.08

Name: Keepsake Gorgon Cost: 3BB Type: Creature -- Gorgon Pow/Tgh: 2/5 Rules Text: Deathtouch {5}{B}{B}: Monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.) When this creature becomes monstrous, destroy target non-Gorgon creature an opponent controls. Set/Rarity: Theros uncommon, Conspiracy: Take the Crown uncommon, Pioneer Masters uncommon Price: $0.07

Name: Kefnet's Monument Cost: 3 Type: Legendary Artifact Rules Text: Blue creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step. Set/Rarity: Amonkhet uncommon, Amonkhet Remastered uncommon Price: $0.34

Name: Keldon Battlewagon Cost: 5 Type: Artifact Creature -- Juggernaut Pow/Tgh: 0/3 Rules Text: Trample This creature can't block. When this creature attacks, sacrifice it at end of combat. Tap an untapped creature you control: This creature gets +X/+0 until end of turn, where X is the power of the creature tapped this way. Set/Rarity: Prophecy rare Price: $0.28

Name: Keleth, Sunmane Familiar Cost: 1W Type: Legendary Creature -- Horse Pow/Tgh: 1/1 Rules Text: Whenever a commander you control attacks, put a +1/+1 counter on it. Partner (You can have two commanders if both have partner.) Set/Rarity: Magic Online Promos uncommon, Commander Legends uncommon, Commander Masters uncommon Price: $0.10

Name: Kelinore Bat Cost: 2B Type: Creature -- Bat Pow/Tgh: 2/1 Rules Text: Flying Set/Rarity: Magic 2010 common Price: $0.08

Name: Kellan's Lightblades Cost: 1W Type: Instant Rules Text: Bargain (You may sacrifice an artifact, enchantment, or token as you cast this spell.) Kellan's Lightblades deals 3 damage to target attacking or blocking creature. If this spell was bargained, destroy that creature instead. Set/Rarity: Wilds of Eldraine common Price: $0.02

Name: Kelsinko Ranger Cost: W Type: Creature -- Human Ranger Pow/Tgh: 1/1 Rules Text: {1}{W}: Target green creature gains first strike until end of turn. Set/Rarity: Ice Age common Price: $0.10

Name: Kemba's Banner Cost: 3W Type: Artifact -- Equipment Rules Text: For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.) Equipped creature gets +1/+1 for each creature you control. Equip {2}{W} Set/Rarity: Phyrexia: All Will Be One Commander rare Price: $0.26

Name: Kemba's Legion Cost: 5WW Type: Creature -- Cat Soldier Pow/Tgh: 4/6 Rules Text: Vigilance This creature can block an additional creature each combat for each Equipment attached to this creature. Set/Rarity: Mirrodin Besieged uncommon, The List uncommon Price: $0.02

Name: Kemba's Skyguard Cost: 1WW Type: Creature -- Cat Knight Pow/Tgh: 2/2 Rules Text: Flying When this creature enters, you gain 2 life. Set/Rarity: Duel Decks: Elspeth vs. Tezzeret common, Scars of Mirrodin common Price: $0.11

Name: Kemba, Kha Enduring Cost: 1W Type: Legendary Creature -- Cat Cleric Pow/Tgh: 2/2 Rules Text: Whenever Kemba or another Cat you control enters, attach up to one target Equipment you control to that creature. Equipped creatures you control get +1/+1. {3}{W}{W}: Create a 2/2 white Cat creature token. Set/Rarity: Phyrexia: All Will Be One rare, Phyrexia: All Will Be One Promos rare Price: $0.20