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

Create a 3/3 green Centaur creature token.
Fuse (You may cast one or both halves of this card from your hand.)

Creatures of the creature type of your choice get -3/-3 until end of turn.

: This creature gets +3/+3 until end of turn.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

When this creature dies, mill three cards. (Put the top three cards of your library into your graveyard.)
Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Flying, ward
: Exile another target creature or artifact you control. Return it to the battlefield under its owner's control at the beginning of the next end step.

Target creature gets +2/+2 until end of turn. If you control an Equipment, create a 1/1 white Human Soldier creature token.

(: Add .)

This creature enters with five +1/+1 counters on it.
Whenever a player casts a spell, remove a +1/+1 counter from this creature. If you do, create a 2/2 black Zombie creature token.

Whenever this creature enters or attacks, you lose 1 life and create a Junk token. (It's an artifact with ", Sacrifice this token: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")
Whenever a token you control leaves the battlefield, put a +1/+1 counter on this creature.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)

Trample
Lizard Formula — When Lizard, Connors's Curse enters, up to one other target creature loses all abilities and becomes a green Lizard creature with base power and toughness 4/4.

Prevent all combat damage that would be dealt this turn.
Fateful hour — If you have 5 or less life, tap all attacking creatures. Those creatures don't untap during their controller's next untap step.

When this enchantment enters, you gain 5 life and incubate 5. (Create an Incubator token with five +1/+1 counters on it and ": Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)
Phyrexians you control have reach.

: Add .
: Add one mana of any color. Spend this mana only to cast a Mount spell.
, : Look at the top card of your library. If it's a Mount card, you may reveal it and put it into your hand. If you don't put it into your hand, you may put it on the bottom of your library.

Assist (Another player can pay up to of this spell's cost.)
Destroy target creature with power 4 or greater.

Lifelink

, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Discard two cards: Create a 2/2 black Zombie creature token.