Untap target creature. It gets +2/+2 and gains indestructible until end of turn.

Whenever Lithe Stalker or another artifact enters under your control, artifact creatures you control gain first strike until end of turn.

Enchant creature
Enchanted creature gets +2/+2.
Wander {2}{W}

Flash
Flying, lifelink
Your opponents can't create tokens.

Ward {1}
Cybersoul {X}{X}{W}

{6}: Put two +1/+1 counters on target creature you control. Activate only as a sorcery and only if your devotion to white is three or more.

When Marie Laurent enters the battlefield, you may search your library for a card named Hans Nehmann or Diago Maldovo and reveal that card. If you do, shuffle, then put the card on top of it.
Legendary Allies you control have double strike.

When Meat-Market Heifer is put into a graveyard from anywhere, create a Food token.

Equipped creature gets +0/+1 and has vigilance.
Equipped creature assigns combat damage equal to its toughness rather than its power, and can attack as though it didn't have defender.
Equip {2}

{3}{W}: Meowsician dares 4.
Whenever a creature you control becomes a Rebel, create a 1/1 white Warrior creature token.

Vigilance
Whenever Mokar Warband attacks, create a 1/1 white Human creature token that's attacking.

Flash
When Narzi, Hero of the Mokar enters the battlefield, up to one other target creature gets +1/+1 and gains indestructible until end of turn. If she wandered, other creatures you control get +1/+1 and gain indestructible until end of turn instead.
Wander {4}{W}{W}

Nebulous Ring enters tapped.
{T}: Add {C} or {W}.
{1}, Discard Nebulous Ring: Scry 2.

Neo Stehlia enters tapped unless you control a basic non-Plains land.
{T}: Add {W}.
{2}{W}, {T}: Choose a creature type. Creatures you control of the chosen type get +1/+0 until end of turn.

New Recruit has first strike as long as it is attacking.
When New Recruit dies, create a 2/2 black Zombie creature token.

Whenever another creature enters the battlefield under your control, you gain 2 life.

Enchant creature you control
All damage that would be dealt to you is dealt to enchanted creature instead.
If a source would deal damage to enchanted creature, if you control three or more enchantments, prevent 1 of that damage.

Flying, first strike
While you're looking at one or more cards on top of your library except while searching, you may reveal Niokana Headliner from among them and put it into your hand.

Whenever another creature enters the battlefield under your control, Nomad's Companion gets +1/+1 until end of turn.

If you would gain life, you gain that much life plus 1 instead.
If one or more tokens would be created under your control, those tokens plus a 0/1 white Goat creature token are created instead.

Lifelink
{2}{W}: Ogre of the Gilded Halls gains indestructible until end of turn. Tap it.

Flash
When Omen of Victory enters the battlefield, create a 0/0 white Army creature token, then put two +1/+1 counter on it.
{2}{W}, Sacrifice Omen of Victory: Scry 2.

Enchant creature you control
At the beginning of each combat, other creatures you control gain first strike until end of turn if enchanted creature has first strike. The same is true for flying, deathtouch, double strike, haste, hexproof, indestructible, lifelink, menace, reach, trample, vigilance, and ward.

Whenever a nontoken creature enters the battlefield under your control, if it wasn't cast from your hand, put a +1/+1 counter on that creature.
Wander {2}{W}

Enchant creature
When Ordained Penitence enters the battlefield, you may put a lifelink counter on target creature you control.
Enchanted creature can't attack or block, and its activated abilities can't be activated.