msem-instigator

Walker of the Final Path gets +3/+3 and has trample as long as you control a Horror.
When Walker of the Final Path enters, search your library for a Revelation card, put it into your graveyard, then shuffle.

Play with the top card of your library revealed.
Spells you cast that share a creature type with the top card of your library cost {1} less to cast.

{T}, Pay 1 life: Add {B} or {G}.
{2}, {T}, Sacrifice Walled Garden and another permanent: Draw a card. Activate only during your turn.

Angels, Demons, Faeries, and Spirits you control get +1/+1.
{2}{W}{B}, Pay 1 life, Discard a card: Create a tapped 1/1 white Spirit creature token with flying.

When a creature you control scavenges Wanderer of Many, create a token that's a copy of that creature. Put a +1/+1 counter on the copy.
Scavenge {3}{U} ({3}{U}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Whenever Wanderer of Oblivion enters or attacks, exile target card from a graveyard.
You may play cards exiled with Wanderer of Oblivion.

Ferocious — At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Equipped creature gets +2/+1.
Whenever equipped creature attacks, create a 1/1 white Peasant creature token that's tapped and attacking.
Equip {2}

Wanderer's Sky enters tapped.
As Wanderer's Sky enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

Survivors you control have menace.

Assault {G} (Whenever this attacks, if it has no +1/+1 counters on it, you may pay its assault cost to put a +1/+1 counter on it.)
Whenever a creature you control assaults, it gains indestructible until end of turn.

Vanishing 1 (This creature enters with a time counter on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Waning Behemoth enters, you may pay {X}. If you do, put X time counters on it.

{T}: Add {C}.
{5}, {T}, Sacrifice War Golem Forge: Create a 3/3 colorless Golem artifact creature token.

Creatures you control get +1/+0 and gain haste until end of turn. (Cast a copy of this spell once while this creature is on the battlefield.)

When War of Resources enters, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
Whenever a creature you control dies, each opponent loses 1 life.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — War's Sorrow deals 1 damage to any target.
III — Each player sacrifices another permanent. Put War's Sorrow on top of its owner's library unless a player has it deal 3 damage to them.

Vigilance
Whenever Warchief of the Folded Fan attacks, invigorate 2. (Choose a creature with the least power among creatures you control and put two +1/+1 counters on it.)

Whenever you cast an Elf spell, create a 1/1 green Elf Druid creature token.
Tap four untapped Druids you control: Destroy target artifact or enchantment.

Flying
Warden of Harshapal Tower's power and toughness are each equal to the number of creatures you control.

Defender
When Warden of Silence enters, draw a card.

Flying
Whenever Warden of the Divine Court attacks, creatures in its pack get +1/+1 until end of turn. (Two or more creatures you control with equal power are in a pack.)

Lifelink
{3}{W}: Exile Wardens of the Ulek. Return it to the battlefield under its owner's control at the beginning of the next end step.

Enchant creature
Enchanted creature has double strike and “Other creatures you control have first strike.”

As Warmonger Contraption enters, choose a creature type.
Warmonger Contraption is the chosen type in addition to its other types.
Warmonger Contraption's power and toughness are each equal to the number of creatures of the chosen type you control.

Prevent all damage target attacking creature would deal this turn. If there is a card named Warning Shot in your graveyard, exile that creature.