Cast Out
Sorcery (C)
Exile target creature with a converted mana cost of X.

Contemplate Madness
Enchantment - Aura (C)
Enchant creature
Enchanted creature can’t attack or block.
Sacrifice Contemplate Madness: Draw a card.

Dig In
Instant (C)
Target creature gets +2/+2 until end of turn. If that creature is blocking, it gets +4/+4 until end of turn instead.

Lamenting Warlord
Creature - Human Soldier (C)
Whenever a creature you control dies tap Lamenting Warlord.
4/4

Thealian Keepsake
Instant (C)
Choose one -
• Destroy target artifact or enchantment.
• Exile target artifact or enchantment, then return it to the battlefield under its owner’s control.

Theal is the name of the God the humans worship. There is no evidence he actually exists, but it is popularily beleived he sends The Shroud to punish us for something. What that is is open to interpretation.

Trained Militia
Creature - Human Soldier (C)
Vigilance
Trained Militia gets +1/+1 for each other Trained Militia on the battlefield.
If you control two or more Trained Militia, Trained Militia gains lifelink.
If you control three or more Trained Militia, Trained Militia gains first strike.
2/5

True Loves Kiss
Instant (C)
Untap target creature. You may destroy any Auras attached to it.

The names doesn't really fit the theme of the world but I haven't thought of a better one yet.

Vampire Air Support
Creature - Vampire Soldier (C)
Flying
When Vampire Air Support enters the battlefield put a +1/+1 counter on another target creature.
3/2

I kind of hate the name and kind of like it at the same time.

Yethi Trapper
Creature - Human Scout (C)
Plains Dweller (Whenever a Plains enters the battlefield under your control you may untap this creature.)
: Tap target creature.
2/1

Promising Cadet
Creature - Human Soldier (C)
Whenever another creature enters the battlefield under your control, if there isn’t a +1/+1 counter on Promising Cadet, put a +1/+1 counter on Promising Cadet.
1/1

Ravenblight Field Cleric
Creature - Human Cleric (C)
Plains Dweller (Whenever a Plains enters the battlefield under your control you may untap this creature.)
: Prevent the next 1 damage that would be dealt to target creature or player this turn.
1/1

Ravenblight Newborns
Sorcery (C)
Create two 1/1 white vampire creature tokens with flying.

Battle Clergy
Creature - Human Cleric (U)
, : Gain life equal to Battle Clergy’s toughness.
2/4

Blessed of Theal
Creature - Vampire Cleric (U)
Flying
Whenever you would gain life you gain five life instead.
2/2

Higher Purpose
Enchantment (U)
Whenever you draw a card you may tap target creature.

Open the Armory
Sorcery (U)
Return target aura and/or equipment card from your graveyard to the battlefield.
Resonance (You may cast this from your graveyard as you cast another spell with the same name. If a spell cast this way would be put into a graveyard from anywhere, exile it instead.)

Oathbearer of Ravenblight
Creature - Human Soldier (U)
Whenever a creature enters the battlefield from a graveyard you may pay . If you do, create X 1/1 white human soldier creature tokens.
3/3

Retired Hero
Creature - Human Soldier (U)
Plains Dweller (Whenever a Plains enters the battlefield under your control you may untap this creature.)
Vigilance
: Create a 1/1 white human soldier creature token.
3/3

The flavor was supposed to be that of a man called back into service for Ravenblight, leaving behind children he has sworn to protect.

Submissive Reaction
Instant (U)
Target creature spell enters the battlefield tapped. It doesn’t untap during it controllers next untap step.

Apostasy
Instant (R)
Exile target attacking or blocking creature with toughness less than the highest toughness among creatures you control.

I fought with myself for quite a while on this one. Is it strong enough to be a rare? I think it could be a strong uncommon. But I have a tendancy to undercost.

Benevolent Monstrosity
Creature - Vampire Soldier (R)
Flying
Bloodied — When this creature is damaged, if it doesn’t have a bloodied counter, put a bloodied counter on it.
Whenever Benevolent Monstrosity becomes bloodied, destroy all other creatures.
5/6

Empyrial Champion
Creature - Human Soldier (R)
Plains Dweller (Whenever a Plains enters the battlefield under your control you may untap this creature.)
: Target creature gets +X/+X where X is the number of cards in your hand until end of turn.
2/3

Millicent Walker
Legendary Creature - Human Soldier (R)
First strike
Creatures you control have Plains Dweller.
5/5

Millicent is the daughter of Lord Krill, Ravenblight Templar. She is strongly against the idea of using vampires and werewolves to fight the demons of The Shroud. She beleives humans are amazing creatures capable of incredible acts of bravery and love. She is almost unmatched as a swordmistress, having been trained by Kaia, Sword Mistress since she was a child. Her capacity for hope and ability to inspire those around her has made her very popular in Ravenblight and in battle.

Raise the Spirits
Sorcery (R)
Return all creature cards with a converted mana cost X or less from your graveyard to the battlefield.
Creatures you control get +X/+X until end of turn.

See what I did there?

Resolve of Ravenblight
Enchantment (R)
Creatures you control get +0/+X where X is the number of creatures you control.

Rilva, Battle-Chosen
Legendary Creature - Human Soldier (R)
Whenever Rilva, Battle-Chosen attacks put a +1/+1 counter on each other soldier you control.
Whenever another soldier you control attacks, put a +1/+1 counter on Rilva, Battle-Chosen.
2/2

Speaker of Theal
Creature - Dwarf Cleric (M)
Players can’t cast spells that share a converted mana cost with a permanent on the battlefield.
4/4