msem-instigator

Whenever you cast a noncreature spell, you gain 1 life.

When Spirit of Autumn enters, nourish X, where X is the number of creatures you control. (To nourish X, either put X +1/+1 counters on this creature or create X 1/1 white Citizen creature tokens.)

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{2}{G}: Put two +1/+1 counters on target land you control. If you're in a renaissance, you may have that land become a 0/0 green Elemental creature until end of turn. (It's still a land.)

Mill three cards, then you may return a land card or a Shaman card from your graveyard to your hand.

When Spiritual Colpah dies, you may return target creature card from your graveyard to your hand.

Destroy target artifact or enchantment. Spit on the Grave deals 2 damage to that permanent's controller.(Cast a copy of this spell once while this creature is on the battlefield.)

Spitfire deals 2 damage to target creature. Up to one target creature you control gets +2/+0 until end of turn.

Haste, prowess
Wanderlust — When Spitfireling enters, if you control four or more differently named lands, create two 1/1 red Elemental creature tokens with prowess and haste.

Splendid Scenery enters tapped unless you control a basic land.
{T}: Add {G} or {W}.

For each creature you control, put a +1/+1 counter on it or create a Treasure token.

When Splinter of Creation enters, you may exile any number of land cards from your graveyard.
You may play lands exiled with Splinter of Creation.

Target creature gets +1/+0 and gains first strike until end of turn.
Draw a card.

Flying, haste
Erratic (When this creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)
When Splitflame Phoenix dies, you may pay {R}. If you do, return it to its owner's hand.

Vigilance, reach
{T}: Splitshaft Deadeye deals damage equal to its power to target creature with flying.

Flash
When Splitting Image enters, you may pay {2} any number of times. Whenever you do, copy target spell. You may reselect modes and choose new targets for the copies.

Whenever a land you control enters, you may pay {1}. If you do, create a 1/1 green Saproling creature token.

{1}{G}: Exile two target cards from a single graveyard. When you do, germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Haste
Whenever Spotted Slugger deals combat damage to a player, you may have it deal damage equal to its power to target creature.

Trample (This creature can deal excess combat damage to defending player or planeswalker while attacking.)
Sprareos Yearling gets +4/+4 as long as you control five or more lands.

{T}: Add one mana of any color. When this mana is spent to cast an enchantment spell with mana value 5 or greater, draw a card.

When Spreading Dissent enters, exile all creatures until Spreading Dissent leaves the battlefield.
{X}: Put a random creature card with mana value X exiled with Spreading Dissent onto the battlefield. Any player may activate this ability.

Sacrifice any number of lands. Search your library for that many basic land cards, put them onto the battlefield, then shuffle.

At the beginning of each upkeep, untap up to two target lands.

{T}: Add {C}.
{4}, {T}: Create a 0/1 white Goat creature token.
{T}, Sacrifice X Goats: Add X mana of any one color. You gain X life.

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Another target creature you control gets +1/+1 until end of turn.
[Lore III] Search your library for a basic land card, put it onto the battlefield, then shuffle.