Whenever Magnetic Rhetorician attacks, make a pledge.

{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, 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.

Target creature gains indestructible until end of turn. Teach it lifelink.

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}

When Mellan, Defense Attorney enters, make a pledge.
{T}: Choose a color from among other permanents you control. Another target creature you control gains hexproof from that color until end of turn. It can't be blocked by creatures of that color this turn.

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

When Minister of Utility enters, make a pledge.
{2}, Sacrifice a Clique: Make a pledge.

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

Flash
When Narzi, Hero of the Mokar enters, 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}

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 you control enters, 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 you control enters, 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, create a 0/0 white Army creature token, then put two +1/+1 counters 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 you control enters, 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, 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.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Athreos.
When you sacrifice Ordeal of Athreos, return target creature card from your graveyard to the battlefield.

When Overbearing Researcher enters, put a +1/+1 counter on target creature.
Each creature you control has ward {X}, where X is the number of counters on that creature.

Exile target creature. Tap up to two other target creatures if the exiled creature had power 3 or less.