Mass Hysteria

Fecundity

Whenever a creature dies, that creature's controller may draw a card.

Vernal Equinox

Any player may cast creature and enchantment spells as though they had flash.

Oath of Lieges

At the beginning of each player's upkeep, that player chooses target player who controls more lands than they do and is their opponent. The first player may search their library for a basic land card, put that card onto the battlefield, then shuffle.

Fevered Visions

At the beginning of each player's end step, that player draws a card. If the player is your opponent and has four or more cards in hand, Fevered Visions deals 2 damage to that player.

Heartbeat of Spring

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Bottomless Pit

At the beginning of each player's upkeep, that player discards a card at random.

Well of Knowledge

{2}: Draw a card. Any player may activate this ability but only during their draw step.

Ghirapur Orrery

Each player may play an additional land on each of their turns.
At the beginning of each player's upkeep, if that player has no cards in hand, that player draws three cards.

Unifying Theory

Whenever a player casts a spell, that player may pay {2}. If the player does, they draw a card.

Divine Presence

If a source would deal 4 or more damage to a permanent or player, that source deals 3 damage to that permanent or player instead.

Horn of Greed

Whenever a player plays a land, that player draws a card.

Endbringer's Revel

{4}: Return target creature card from a graveyard to its owner's hand. Any player may activate this ability but only as a sorcery.

Upwelling

Players don't lose unspent mana as steps and phases end.

Ludevic, Necro-Alchemist

At the beginning of each player's end step, that player may draw a card if a player other than you lost life this turn.
Partner (You can have two commanders if both have partner.)

Helm of Awakening

Horn of Plenty

Whenever a player casts a spell, they may pay {1}. If the player does, they draw a card at the beginning of the next end step.

Overabundance

Whenever a player taps a land for mana, that player adds one mana of any type that land produced, and Overabundance deals 1 damage to the player.

Wishmonger

{2}: Target creature gains protection from the color of its controller's choice until end of turn. Any player may activate this ability.

Have

Getting

Don't Have

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