msem-instigator

{T}: Add {C}.
{5}, {T}, Sacrifice Wildkin Grove: Create three 1/1 colorless Shapeshifter creature tokens with changeling. (They're every creature type.)

{T}: Add {C}.
{1}, {T}: Add one mana of any color. When this mana is spent to cast a spell that shares a color with a legendary creature you control, scry 1.

When Vale Ruins enters, you gain 1 life.
{T}, Sacrifice Vale Ruins: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Tranquil Shrine enters tapped.
When Tranquil Shrine enters, if you don't control a legendary creature, sacrifice it unless you pay {1}.
{T}: Add one mana of any color.

Sacred Summits enters tapped.
{T}: Add one mana of any color among the color identity of legendary creatures and planeswalkers you control or legendary cards in your command zone.

{T}: Add {C}.
{3}, {T}, Sacrifice Mystical Tomb: Return target artifact, enchantment, or legendary card from your graveyard to your hand.

Magnificent Palace enters tapped.
As Magnificent Palace enters, choose two colors.
{T}: Add one mana of any of the chosen colors.

{T}: Add {C}.
{T}: Put a +1/+1 counter on each legendary creature and a loyalty counter on each planeswalker that you control entered this turn.

{T}: Add {C}.
{T}: Untap target legendary creature you control. Activate only once each turn.

{T}: Add {C}.
{T}: Add one mana of any color among creatures and planeswalkers you control.
{T}: Target player may gain control of target permanent you own. (That player may choose not to.)

You have no maximum hand size.
{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Flying
{2}: Copy target activated or triggered ability you control. You may choose new targets for the copy.
{W}{U}{B}{R}{G}: Search your library for a card, exile it, then shuffle. Until the end of your next turn, you may play that card.

When Woodcutter's Hatchet enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Equipped creature gets +2/+2.
Equip {2}

At the beginning of your end step, draw two cards and you lose 2 life.

Equipped creature gets +2/+2.
Whenever equipped creature attacks, exile target nonland permanent defending player controls. For as long as that card remains exiled, its owner may cast it. (They still pay its costs.)
Equip {2}

{3}, {T}: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

Whenever you cast an instant or sorcery spell, you may attach Stormbreaker's Edge to target creature you control.
Equipped creature gets +3/+0.
Equip {3}

{1}, {T}, Exile Sphere of Sorcery: Return target noncreature, nonland card from your graveyard to your hand.
{8}, {T}, Exile Sphere of Sorcery: Return any number of target noncreature, nonland cards from your graveyard to your hand.

{1}, Sacrifice Sovereign Stone: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
{1}, Sacrifice Sovereign Stone: Draw a card.

Equipped creature has haste.
At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary if equipped creature is legendary. That token gains haste. Exile it at the beginning of the next end step.
Equip {2}

{T}: Add {C}.
{T}, Pay 1 life: Add one mana of any color.

The “legend rule” doesn't apply to artifacts and enchantments you control.
Equipped creature gets +1/+1 for each artifact and/or enchantment you control.
Equip {2}

Equipped creature can't be blocked and has ward {3}.
Equip {2}

When Haunted Heirloom dies, create a Treasure token.

When Etched Longspear enters, attach it to target creature you control.
Equipped creature gets +2/+0.
Equip {3}