Glorious Anthem

Nadaar, Selfless Paladin

Vigilance
Whenever Nadaar, Selfless Paladin enters or attacks, venture into the dungeon. (Enter the first room or advance to the next room.)
Other creatures you control get +1/+1 as long as you've completed a dungeon.

Force of Virtue

If it's not your turn, you may exile a white card from your hand rather than pay this spell's mana cost.
Flash
Creatures you control get +1/+1.

Commander's Insignia

Creatures you control get +1/+1 for each time you've cast your commander from the command zone this game.

Guardian's Magemark

Flash
Enchant creature
Creatures you control that are enchanted get +1/+1.

Angelic Voices

Creatures you control get +1/+1 as long as you control no nonartifact, nonwhite creatures.