Mercenaries don't untap during their controllers' untap steps.

Whenever a player puts a nontoken creature onto the battlefield, that player returns a land they control to its owner's hand.

This creature can't be blocked as long as defending player controls an untapped land.

Flash
Enchant creature
: Regenerate enchanted creature.

Whenever this creature deals combat damage to a creature, you gain 2 life unless that creature's controller pays .

Sacrifice a land: This creature gets +2/+0 and gains first strike until end of turn. Activate only once each turn.

: The next time target attacking creature would deal combat damage to this creature this turn, that creature deals that damage to itself instead.

Rhystic Lightning deals 4 damage to any target unless that permanent's controller or that player pays . If they do, Rhystic Lightning deals 2 damage to the permanent or player.

When there are no creatures on the battlefield, sacrifice this enchantment.
: This enchantment deals 1 damage to target creature. Any player may activate this ability but only as a sorcery.

Defender (This creature can't attack.)
: Destroy this creature and target creature it's blocking. Any player may activate this ability.

: Prevent the next 1 damage that would be dealt to target creature this turn. Any player may activate this ability.

Flying
, Sacrifice a land: Search your library for a Mercenary permanent card with mana value 2 or less, put it onto the battlefield, then shuffle.

: Tap target creature unless its controller pays .

Enchant land
Enchanted land has ": This land deals 1 damage to each creature and each player."

, Sacrifice two lands: Destroy target land.

This creature gets +2/+1 as long as you control no untapped lands.

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

Wing Storm deals damage to each player equal to twice the number of creatures that player controls with flying.

: This creature gets +1/+0 until end of turn.

At the beginning of each player's end step, this enchantment deals X damage to that player, where X is the number of untapped lands they control.

: Target creature gains haste until end of turn. (It can attack this turn.)

Reorder your graveyard at random. An opponent chooses a card at random in your graveyard. If it's a creature card, put it onto the battlefield. Otherwise, exile it.

Whenever an opponent casts a spell, you may draw a card unless that player pays .

You may discard a Plains card rather than pay this spell's mana cost.
Destroy target artifact or enchantment.

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

When this creature enters, tap all lands you control.

Counter target spell unless its controller pays , where X is its mana value.

Flying
: This creature loses flying until end of turn. Any player may activate this ability.

Up to three target creatures can't block this turn.

Enchant land
Enchanted land has ": Target creature gets +1/+1 until end of turn."

: Regenerate this creature.
Whenever this creature deals combat damage to a player, that player discards a card.

Whenever this creature deals combat damage to a creature, that creature's controller loses 2 life unless they pay .

, Sacrifice this creature: Destroy target attacking creature.

This creature can't be the target of white spells or abilities from white sources.
: Put target nontoken Rebel on the bottom of its owner's library.

Unless any player pays , search your library for a card, put that card into your hand, then shuffle.

This creature can't be the target of black spells or abilities from black sources.
: Put target nontoken Mercenary on the bottom of its owner's library.