
Avacyn, Guardian Angel | Legendary Creature | Angel | Flying, vigilance
{1}{W}: Prevent all damage that would be dealt to another target creature this turn by sources of the color of your choice.
{5}{W}{W}: Prevent all damage that would be dealt to target player or planeswalker this turn by sources of the color of your choice. | Winona Nelson

Hushwing Gryff | Creature | Hippogriff | Flash
Flying
Creatures entering the battlefield don't cause abilities to trigger. | John Severin Brassell

Mass Calcify | Sorcery | | Destroy all nonwhite creatures. | Brandon Kitkouski

Preeminent Captain | Creature | Kithkin Soldier | First strike (This creature deals combat damage before creatures without first strike.)
Whenever Preeminent Captain attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking. | Greg Staples

Resolute Archangel | Creature | Angel | Flying
When Resolute Archangel enters the battlefield, if your life total is less than your starting life total, it becomes equal to your starting life total. | Anthony Palumbo

Return to the Ranks | Sorcery | | Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Return X target creature cards with mana value 2 or less from your graveyard to the battlefield. | Michael Komarck

Spectra Ward | Enchantment | Aura | Enchant creature
Enchanted creature gets +2/+2 and has protection from all colors. This effect doesn't remove Auras. (It can't be blocked, targeted, or dealt damage by anything that's white, blue, black, red, or green.) | Ryan Alexander Lee

Spirit Bonds | Enchantment | | Whenever a nontoken creature enters the battlefield under your control, you may pay {W}. If you do, create a 1/1 white Spirit creature token with flying.
{1}{W}, Sacrifice a Spirit: Target non-Spirit creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Willian Murai

Battlefield Forge | Land | | {T}: Add {C}.
{T}: Add {R} or {W}. Battlefield Forge deals 1 damage to you. | Darrell Riche

Caves of Koilos | Land | | {T}: Add {C}.
{T}: Add {W} or {B}. Caves of Koilos deals 1 damage to you. | Jim Nelson