Name: Obuun, Mul Daya Ancestor Cost: 1RGW Type: Legendary Creature -- Elf Spirit Pow/Tgh: 3/3 Rules Text: At the beginning of combat on your turn, up to one target land you control becomes an X/X Elemental creature with trample and haste until end of turn, where X is Obuun's power. It's still a land. Landfall -- Whenever a land you control enters, put a +1/+1 counter on target creature. Set/Rarity: Magic Online Promos mythic, Zendikar Rising Commander mythic Price: $0.40

Name: Octavia, Living Thesis Cost: 8UU Type: Legendary Creature -- Elemental Octopus Pow/Tgh: 8/8 Rules Text: This spell costs {8} less to cast if you have eight or more instant and/or sorcery cards in your graveyard. Ward {8} Magecraft -- Whenever you cast or copy an instant or sorcery spell, target creature has base power and toughness 8/8 until end of turn. Set/Rarity: Magic Online Promos rare, Commander 2021 rare, Outlaws of Thunder Junction Commander rare Price: $1.14

Name: Offalsnout Cost: 2B Type: Creature -- Elemental Pow/Tgh: 2/2 Rules Text: Flash When this creature leaves the battlefield, exile target card from a graveyard. Evoke {B} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.) Set/Rarity: Morningtide uncommon, Ultimate Masters common Price: $0.24

Name: Omarthis, Ghostfire Initiate Cost: XX Type: Legendary Creature -- Spirit Snake Pow/Tgh: 0/0 Rules Text: Omarthis enters with X +1/+1 counters on it. Whenever you put one or more +1/+1 counters on another colorless creature, you may put a +1/+1 counter on Omarthis. When Omarthis dies, manifest a number of cards from the top of your library equal to the number of counters on it. Set/Rarity: Commander Masters mythic Price: $1.43

Name: Omen of Fire Cost: 3RR Type: Instant Rules Text: Return all Islands to their owners' hands. Each player sacrifices a Plains or a white permanent of their choice for each white permanent they control. Set/Rarity: Alliances rare Price: $1.43

Name: Omnath, Locus of All Cost: WU{B/P}RG Type: Legendary Creature -- Phyrexian Elemental Pow/Tgh: 4/4 Rules Text: If you would lose unspent mana, that mana becomes black instead. At the beginning of your first main phase, look at the top card of your library. You may reveal that card if it has three or more colored mana symbols in its mana cost. If you do, add three mana in any combination of its colors and put it into your hand. If you don't reveal it, put it into your hand. Set/Rarity: March of the Machine Promos rare, March of the Machine rare Price: $0.47

Name: Omnath, Locus of Creation Cost: RGWU Type: Legendary Creature -- Elemental Pow/Tgh: 4/4 Rules Text: When Omnath enters, draw a card. Landfall -- Whenever a land you control enters, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control. Set/Rarity: Magic Online Promos mythic, Secret Lair Drop mythic, Zendikar Rising Promos mythic, Zendikar Rising mythic, The List mythic, Store Championships mythic Price: $4.17

Name: Omnath, Locus of Mana Cost: 2G Type: Legendary Creature -- Elemental Pow/Tgh: 1/1 Rules Text: You don't lose unspent green mana as steps and phases end. Omnath gets +1/+1 for each unspent green mana you have. Set/Rarity: Worldwake mythic, From the Vault: Legends mythic, Commander Collection: Green mythic, Commander Masters mythic Price: $4.17

Name: Omnath, Locus of Rage Cost: 3RRGG Type: Legendary Creature -- Elemental Pow/Tgh: 5/5 Rules Text: Landfall -- Whenever a land you control enters, create a 5/5 red and green Elemental creature token. Whenever Omnath or another Elemental you control dies, Omnath deals 3 damage to any target. Set/Rarity: Battle for Zendikar mythic, Battle for Zendikar Promos mythic, Secret Lair Drop mythic, Zendikar Rising Commander mythic, The List mythic, Explorer Anthology 3 mythic, Outlaws of Thunder Junction Commander mythic, Edge of Eternities Commander mythic, Lorwyn Eclipsed Commander mythic Price: $0.27

Name: Omnath, Locus of the Roil Cost: 1GUR Type: Legendary Creature -- Elemental Pow/Tgh: 3/3 Rules Text: When Omnath enters, it deals damage to any target equal to the number of Elementals you control. Landfall -- Whenever a land you control enters, put a +1/+1 counter on target Elemental you control. If you control eight or more lands, draw a card. Set/Rarity: Core Set 2020 Promos mythic, Core Set 2020 mythic, Lorwyn Eclipsed Commander mythic Price: $0.33

Name: Omnath, Locus of the Void Cost: 7 Type: Legendary Creature -- Elemental Pow/Tgh: 6/6 Rules Text: Omnath gets +1/+1 for each unspent mana you have. If you would lose unspent mana, that mana becomes colorless instead. Landfall -- Whenever a land you control enters, add {C}{C}. Set/Rarity: Reality Fracture Commander rare Price: ???

Name: Ondu Rising Cost: 1W Type: Sorcery Rules Text: Whenever a creature attacks this turn, it gains lifelink until end of turn. Awaken 4--{4}{W} (If you cast this spell for {4}{W}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.) Set/Rarity: Battle for Zendikar uncommon Price: $0.06

Name: Open Fire Cost: 2R Type: Instant Rules Text: Open Fire deals 3 damage to any target. Set/Rarity: Hour of Devastation common, Amonkhet Remastered common, Foundations Jumpstart common Price: $0.06

Name: Orchard Elemental Cost: 5G Type: Creature -- Elemental Pow/Tgh: 2/2 Rules Text: Council's dilemma -- When this creature enters, starting with you, each player votes for sprout or harvest. Put two +1/+1 counters on this creature for each sprout vote. You gain 3 life for each harvest vote. Set/Rarity: Conspiracy: Take the Crown common Price: $0.19

Name: Our Market Research Shows That Players Like Really Long Card Names So We Made this Card to Have the Absolute Longest Card Name Ever Elemental Cost: 1GG Type: Creature -- Elemental Pow/Tgh: 2/2 Rules Text: Art rampage 2 (Whenever this creature becomes blocked by a creature, it gets +2/+2 for each creature in the blocker's art beyond the first.) Set/Rarity: Unhinged common Price: $0.36

Name: Overgrowth Elemental Cost: 2G Type: Creature -- Elemental Pow/Tgh: 3/2 Rules Text: When this creature enters, put a +1/+1 counter on another target Elemental you control. Whenever another creature you control dies, you gain 1 life. If that creature was an Elemental, put a +1/+1 counter on this creature. Set/Rarity: Core Set 2020 uncommon Price: $0.30

Name: Ozai, the Phoenix King Cost: 2BBRR Type: Legendary Creature -- Human Noble Pow/Tgh: 7/7 Rules Text: Trample, firebending 4, haste If you would lose unspent mana, that mana becomes red instead. Ozai has flying and indestructible as long as you have six or more unspent mana. Set/Rarity: Avatar: The Last Airbender mythic, Avatar: The Last Airbender Promos mythic Price: $3.91

Name: Pako, Arcane Retriever Cost: 3RG Type: Legendary Creature -- Elemental Dog Pow/Tgh: 3/3 Rules Text: Partner with Haldan, Avid Arcanist Haste Whenever Pako attacks, exile the top card of each player's library and put a fetch counter on each of them. Put a +1/+1 counter on Pako for each noncreature card exiled this way. Set/Rarity: Commander 2020 mythic Price: $0.72

Name: Parcelbeast Cost: 2GU Type: Creature -- Elemental Beast Pow/Tgh: 2/4 Rules Text: Mutate {G}{U} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.) {1}, {T}: Look at the top card of your library. If it's a land card, you may put it onto the battlefield. If you don't put the card onto the battlefield, put it into your hand. Set/Rarity: Magic Online Promos uncommon, Ikoria: Lair of Behemoths uncommon, The List uncommon Price: $0.23

Name: Pardic Firecat Cost: 3R Type: Creature -- Elemental Cat Pow/Tgh: 2/3 Rules Text: Haste If this card is in a graveyard, effects from spells named Flame Burst count it as a card named Flame Burst. Set/Rarity: Odyssey common Price: $0.11