Armored Ascension

Enchant creature
Enchanted creature gets +1/+1 for each Plains you control and has flying.

Inspiring Overseer

Flying
When Inspiring Overseer enters, you gain 1 life and draw a card.

Flash
Flying
When Holy Cow enters, you gain 2 life and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

When Seraph Sanctuary enters, you gain 1 life.
Whenever an Angel you control enters, you gain 1 life.
{T}: Add {C}.

Enchant creature
Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."

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

{1}, Sacrifice Scroll of Avacyn: Draw a card. If you control an Angel, you gain 5 life.

Whenever another creature you control enters, you gain 1 life.

When Spirited Companion enters, draw a card.