msem-instigator

{1}: Look at the top card of your library.
{T}, Sacrifice Marked Coin: You may shuffle your library. Draw a card.

Multipurpose Mannequin gets +1/+1 for each permanent attached to it.

When Nidohagane Warfans enters the battlefield, if it's not a token, create a token that's a copy of it.
Equipped creature gets +1/+0.
Equip {1}

Nightwatch Rallier enters the battlefield with X +1/+1 counters on it.
Other artifact creatures you control get +1/+1 for each +1/+1 counter on Nightwatch Rallier.

Each instant and sorcery card you own has inscribe. The inscribe cost is equal to its mana cost. (Exile that spell card inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

Whenever equipped creature deals combat damage to a player, put a +1/+1 counter on it, then proliferate. (You choose any number of permanents and/or players with counters on them, then give each another kind of a counter already there.)
Equip {2}

Runic Pillars enters the battlefield tapped.
{T}: Add {C}{C}{C}.
{2}: Add one mana of any color.

When Sentient Contraption enters the battlefield, create a 1/1 colorless Thopter artifact creature token with flying.

{1}, {T}: Exile target card from a graveyard. Scry 1.
{T}, Exile Soul Gate: Exile all graveyards.

When Stonefall Golem leaves the battlefield, destroy target permanent.

Untap all other artifacts you control during each other player's untap step.
{T}: Untap another target permanent.

Warded Tome doesn't untap during its controller's untap step.
{T}: Draw a card.
{5}: Untap Warded Tome.

Whenever equipped creature attacks, it gets +2/+2 and gains trample until end of turn.
Equip {2}

({T}: Add {R}.)
Bloodriver enters the battlefield tapped.
When Bloodriver enters the battlefield, target creature you control gains haste until end of turn.

({T}: Add {U} or {R}.)
Boiling Ridge enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {W} or {U}.)
Bustling Harbor enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {W}.)
As Calcified Dunes enters the battlefield, you may pay 1 life. If you don't, Calcified Dunes enters the battlefield tapped.

({T}: Add {U}.)
Cloudbank enters the battlefield tapped.
When Cloudbank enters the battlefield, target creature gains flying until end of turn.

({T}: Add {B}.)
Corpsebed enters the battlefield tapped.
When Corpsebed enters the battlefield, exile up to two target cards from graveyards.

({T}: Add {W} or {B}.)
Dreary Township enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {B} or {G}.)
Duskwood Thicket enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

({T}: Add {G}.)
As Flourishing Dunes enters the battlefield, you may pay 1 life. If you don't, Flourishing Dunes enters the battlefield tapped.

({T}: Add {R} or {G}.)
Glittering Grove enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {C}.
{3}, {T}, Sacrifice Hall of Random Access Memories: Return target artifact, instant, or sorcery card from your graveyard to your hand.

({T}: Add {U} or {B}.)
Hazy Moorland enters the battlefield tapped.
Cycling {2} ({2}, Discard this card: Draw a card.)