Keyword: Convoke

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Covenant of Blood deals 4 damage to any target and you gain 4 life.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
When Living Totem enters the battlefield, you may put a +1/+1 counter on another target creature.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Creatures you control get +3/+3 until end of turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle your library.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Flying
Seraph of the Masses’s power and toughness are each equal to the number of creatures you control.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Target creature gets +2/+2 until end of turn.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Trample

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Target creature gains indestructible until end of turn. (Damage and effects that say “destroy” don’t destroy it.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Stoke the Flames deals 4 damage to any target.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Return up to two target creature cards from your graveyard to your hand.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Create three 3/3 green Beast creature tokens.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Search your library for a creature card with converted mana cost X or less and put it onto the battlefield. Then shuffle your library.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
As Obelisk of Urd enters the battlefield, choose a creature type.
Creatures you control of the chosen type get +2/+2.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Create three 1/1 white Spirit creature tokens with flying. (They can’t be blocked except by creatures with flying or reach.)

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
You gain 8 life.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Stoke the Flames deals 4 damage to any target.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Destroy all nontoken creatures.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
When Conclave Phalanx enters the battlefield, you gain 1 life for each creature you control.

Flash; convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Flying
When Angel of Salvation enters the battlefield, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Flying

Flash; convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Flying
When Angel of Salvation enters the battlefield, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

Kicker (You may pay an additional as you cast this spell.)
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
If Kavu Primarch was kicked, it enters the battlefield with four +1/+1 counters on it.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature’s color.)
Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)
Create a 1/1 green Saproling creature token.