Herald of the Sun

Flying
{3}{W}: Put a +1/+1 counter on another target creature with flying.

Stalwart Valkyrie

You may pay {1}{W} and exile a creature card from your graveyard rather than pay this spell's mana cost.
Flying

Plains

Herald of War

Flying
Whenever this creature attacks, put a +1/+1 counter on it.
Angel spells and Human spells you cast cost {1} less to cast for each +1/+1 counter on this creature.

Angelic Edict

Pacifism

Enchant creature
Enchanted creature can't attack or block.

Giada, Font of Hope

Flying, vigilance
Each other Angel you control enters with an additional +1/+1 counter on it for each Angel you already control.
{T}: Add {W}. Spend this mana only to cast an Angel spell.

Thriving Heath

This land enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Inspiring Overseer

Flying
When this creature enters, you gain 1 life and draw a card.

Rally of Wings

Untap all creatures you control. Creatures you control with flying get +2/+2 until end of turn.

Starnheim Memento

{T}: Add {W}.
{1}{W}, {T}: Target creature gets +1/+1 and gains flying until end of turn. Activate only as a sorcery.

Youthful Valkyrie

Flying
Whenever another Angel you control enters, put a +1/+1 counter on this creature.

Faithful Pikemaster

When this creature enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
As long as it's your turn, this creature has first strike.

Secluded Steppe

This land enters tapped.
{T}: Add {W}.
Cycling {W} ({W}, Discard this card: Draw a card.)