Vigilance
Whenever you attack, bless target creature.

Enchant creature
Enchanted creature has “Whenever this creature deals combat damage to a player or planeswalker, scry 1, then draw a card.”

Flash
Lifelink
When Nikon, Skophos Protector enters, the next time a source of your choice would deal damage to you or a permanent you control this turn, prevent that damage. If damage is prevented this way, Nikon deals that much damage to that source's controller.

Flash
When Omen of Slaughter enters, each opponent sacrifices a creature or planeswalker.
{2}{B}, Sacrifice Omen of Slaughter: Scry 2.

Reach
Whenever Star-Studded Sagittaur deals combat damage to a player, you may bless target land.

Enchant land
Enchanted land has “{T}: Add {G}{G}.”

Whenever Phenax or another Rogue you control deals damage to a player or planeswalker, each player mills two cards.
{1}{U}{B}, Exile five other cards from your graveyard: Return Phenax from your graveyard to the battlefield transformed. Activate only as a sorcery.

Indestructible
As long as your devotion to blue and black is less than seven, Phenax isn't a creature.
At the beginning of each end step, each opponent mills X cards, where X is the number of cards put into their graveyard from anywhere this turn. You gain life equal to the number of cards milled this way.

Flying, vigilance
Other creatures you control are Armies in addition to their other types.
At the beginning of your end step, create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.

Vigilance
Whenever another creature you control dies, return to your hand target enchantment card from your graveyard with lesser mana value.

Favored
Whenever your Champion attacks, tap target creature.

Flying, vigilance, lifelink

Flying
Favored
Whenever your Champion attacks, create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.

Flying, vigilance
When The Army of Trax enters, create a number of 0/0 white Army creature tokens equal to your devotion to white. Then put that many +1/+1 counters on each Army you control.

Lifelink, ward {1}
Whenever Basilo, Lion of Valor attacks, you may bless target nonenchanted creature.

Enchant creature
Enchanted creature gets +1/+1 for each enchantment you control.

Flying
When Bringer of Heliod's Light enters, you may bless target creature.

Enchant creature
Enchanted creature can't attack or block.

{4}{W}, Exile Charging Brightmare from your graveyard: Bless target creature. Activate only as a sorcery.

Enchant creature
Enchanted creature gets +2/+2 and has flying.
Whenever enchanted creature dies, create a 2/2 white Pegasus creature token with flying.

First strike
When Chosen of Heliod enters, bless target creature.
{4}{W}{W}: Bless target creature you control. Activate only as a sorcery.

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

Whenever Claes, Shield of Karda attacks, another target attacking creature you control gains indestructible until end of turn.
Whenever a planeswalker you control enters, you may exile Claes, then return him to the battlefield transformed with a number of loyalty counters on him equal to the starting loyalty of that planeswalker.

Creatures you control have ward {2}.
[+1]: Scry 2. You may put a loyalty counter on another planeswalker you control.
[–1]: Create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.
[–6]: Exile target nonland permanent.

Create a 0/0 white Army creature token if your devotion to white is three or more.
Put a +1/+1 counter on each creature you control.