At the beginning of each player's upkeep, that player chooses target player who controls more creatures than they do and is their opponent. The first player may reveal cards from the top of their library until they reveal a creature card. If the first player does, that player puts that card onto the battlefield and all other cards revealed this way into their graveyard.

Draw a card.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Whenever Ophidian attacks and isn't blocked, you may draw a card. If you do, Ophidian assigns no combat damage this turn.

, Sacrifice a Forest: Add three mana in any combination of and/or .

Flying
When Owl Familiar enters the battlefield, draw a card, then discard a card.

Flying
When Palinchron enters the battlefield, untap up to seven lands.
: Return Palinchron to its owner's hand.

Fading 5 (This enchantment enters the battlefield with five fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)
Remove a fade counter from Parallax Wave: Exile target creature.
When Parallax Wave leaves the battlefield, each player returns to the battlefield all cards they own exiled with Parallax Wave.

Enchant creature
When Paralyze enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may pay . If the player does, untap the creature.

Trample
When Penumbra Wurm dies, create a 6/6 black Wurm creature token with trample.

Phantom Nomad enters the battlefield with two +1/+1 counters on it.
If damage would be dealt to Phantom Nomad, prevent that damage. Remove a +1/+1 counter from Phantom Nomad.

, Sacrifice Phyrexian Defiler: Target creature gets -3/-3 until end of turn.

Whenever Pianna, Nomad Captain attacks, attacking creatures get +1/+1 until end of turn.

When Pillaging Horde enters the battlefield, sacrifice it unless you discard a card at random.

Pine Barrens enters the battlefield tapped.
: Add .
: Add or . Pine Barrens deals 1 damage to you.

(: Add or .)

Will of the council — Starting with you, each player votes for time or knowledge. If time gets more votes, take an extra turn after this one. If knowledge gets more votes or the vote is tied, draw three cards.

Counter target spell unless its controller pays . If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

: Target creature gains flying until end of turn.
, : Destroy target creature with flying.

When Predatory Nightstalker enters the battlefield, you may have target opponent sacrifice a creature.

Prophetic Bolt deals 4 damage to any target. Look at the top four cards of your library. Put one of those cards into your hand and the rest on the bottom of your library in any order.