Name: Power Depot Type: Artifact Land Rules Text: This land enters tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast artifact spells or activate abilities of artifacts. Modular 1 Set/Rarity: Modern Horizons 2 uncommon, Edge of Eternities: Stellar Sights rare Price: $0.39

Name: Power Matrix Cost: 4 Type: Artifact Rules Text: {T}: Target creature gets +1/+1 and gains flying, first strike, and trample until end of turn. Set/Rarity: Mercadian Masques rare, Mystery Booster 2 rare Price: $0.67

Name: Power Plant Worker Cost: 5 Type: Artifact Creature -- Assembly-Worker Pow/Tgh: 4/4 Rules Text: {3}: This creature gets +2/+2 until end of turn. If you control creatures named Mine Worker and Tower Worker, put two +1/+1 counters on this creature instead. Activate only once each turn. Set/Rarity: The Brothers' War common Price: $0.16

Name: Power Word Kill Cost: 1B Type: Instant Rules Text: Destroy target non-Angel, non-Demon, non-Devil, non-Dragon creature. Set/Rarity: The List uncommon, Adventures in the Forgotten Realms uncommon, Game Day Promos rare Price: $0.12

Name: Powerstone Engineer Cost: 1W Type: Creature -- Human Artificer Pow/Tgh: 2/1 Rules Text: When this creature dies, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.") Set/Rarity: The Brothers' War common Price: $0.11

Name: Powerstone Fracture Cost: 1B Type: Sorcery Rules Text: As an additional cost to cast this spell, sacrifice an artifact or creature. Destroy target creature or planeswalker. Set/Rarity: The Brothers' War common, Foundations Jumpstart common Price: $0.06

Name: Powerstone Shard Cost: 3 Type: Artifact Rules Text: {T}: Add {C} for each artifact you control named Powerstone Shard. Set/Rarity: Dominaria common, The List common Price: $0.12

Name: Pox Cost: BBB Type: Sorcery Rules Text: Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control of their choice, then sacrifices a third of the lands they control of their choice. Round up each time. Set/Rarity: Ice Age rare, Fifth Edition rare, Oversized League Prizes rare, Masters Edition rare, Mystery Booster 2 rare Price: $2.13

Name: Pox Plague Cost: BBBBB Type: Sorcery Rules Text: Each player loses half their life, then discards half the cards in their hand, then sacrifices half the permanents they control of their choice. Round down each time. Set/Rarity: Secrets of Strixhaven rare, Secrets of Strixhaven Promos rare Price: $0.33

Name: Poxwalkers Cost: 2B Type: Creature -- Zombie Pow/Tgh: 3/1 Rules Text: Deathtouch Curse of the Walking Pox -- Whenever you cast a spell from anywhere other than your hand, return this card from your graveyard to the battlefield tapped. Set/Rarity: Warhammer 40,000 Commander rare Price: $12.32

Name: Practiced Offense Cost: 2W Type: Sorcery Rules Text: Put a +1/+1 counter on each creature target player controls. Target creature gains your choice of double strike or lifelink until end of turn. Flashback {1}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.) Set/Rarity: Secrets of Strixhaven rare, Secrets of Strixhaven Promos rare Price: $0.34

Name: Practiced Tactics Cost: W Type: Instant Rules Text: Choose target attacking or blocking creature. Practiced Tactics deals damage to that creature equal to twice the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.) Set/Rarity: Zendikar Rising common Price: $0.09

Name: Praetor's Grasp Cost: 1BB Type: Sorcery Rules Text: Search target opponent's library for a card and exile it face down. Then that player shuffles. You may play that card for as long as it remains exiled. Set/Rarity: New Phyrexia rare, Secret Lair Drop rare Price: $10.90

Name: Prairie Dog Cost: 1W Type: Creature -- Squirrel Pow/Tgh: 2/2 Rules Text: Lifelink At the beginning of your end step, if you haven't cast a spell from your hand this turn, put a +1/+1 counter on this creature. {4}{W}: Until end of turn, if you would put one or more +1/+1 counters on a creature you control, put that many plus one +1/+1 counters on it instead. Set/Rarity: Outlaws of Thunder Junction uncommon Price: $0.06

Name: Prakhata Club Security Cost: 3B Type: Creature -- Aetherborn Warrior Pow/Tgh: 3/4 Rules Text: Set/Rarity: Kaladesh common, Battlebond common, The List common Price: $0.02

Name: Prakhata Pillar-Bug Cost: 3 Type: Artifact Creature -- Insect Pow/Tgh: 2/3 Rules Text: {B}: This creature gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.) Set/Rarity: Kaladesh common, The List common, Kaladesh Remastered common Price: $0.04

Name: Prava of the Steel Legion Cost: 2W Type: Legendary Creature -- Cat Soldier Pow/Tgh: 1/4 Rules Text: During your turn, creature tokens you control get +1/+4. {3}{W}: Create a 1/1 white Soldier creature token. Partner (You can have two commanders if both have partner.) Set/Rarity: Magic Online Promos uncommon, The List uncommon, Commander Legends uncommon, Phyrexia: All Will Be One Commander uncommon Price: $0.31

Name: Prayer of Binding Cost: 3W Type: Enchantment Rules Text: Flash When this enchantment enters, exile up to one target nonland permanent an opponent controls until this enchantment leaves the battlefield. You gain 2 life. Set/Rarity: Dominaria United uncommon, Foundations uncommon Price: $0.10

Name: Pre-War Formalwear Cost: 2W Type: Artifact -- Equipment Rules Text: When this Equipment enters, return target creature card with mana value 3 or less from your graveyard to the battlefield and attach this Equipment to it. Equipped creature gets +2/+2 and has vigilance. Equip {3} Set/Rarity: Secret Lair Drop rare, Fallout rare Price: $2.50

Name: Preacher Cost: 1WW Type: Creature -- Human Cleric Pow/Tgh: 1/1 Rules Text: You may choose not to untap this creature during your untap step. {T}: For as long as this creature remains tapped, gain control of target creature of an opponent's choice they control. Set/Rarity: The Dark rare, Magic Online Promos rare, Masters Edition rare Price: $27.79