msem-instigator

Sun-Dappled Paragon enters the battlefield with a +1/+1 counter on it for each other creature you control.
Whenever another creature enters the battlefield under your control, put a +1/+1 counter on Sun-Dappled Paragon.

Vanguard — Whenever a creature you control attacks alone, you may cast a spell with mana value 3 or less from your hand without paying its mana cost.

Whenever you gain life for the first time each turn, draw a card.
{3}{G}{W}: You gain life equal to the greatest toughness among creatures you control.

Whenever another creature enters the battlefield under your control, Sunblessed Orator deals 1 damage to each opponent and you gain 1 life.

{2}{W}: Prevent all damage that would be dealt to and dealt by Suncaller Nymph this turn.

Spirited (When this creature enters the battlefield, you may activate one of its activated abilities without paying its cost.)
{3}{R}{W}: Creatures you control gain flying and haste until end of turn.

Flying
When Sunchaser Mantas enters the battlefield, choose a color. Look at the top four cards of your library. You may reveal a card of the chosen color from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Exile target artifact or enchantment. If its mana value is 3 or less, draw a card.

Create two 2/2 white Griffin creature tokens with flying. If you control a legendary creature, create three of those tokens instead.

Flying
As long as it's your turn, creatures you control get +3/+0 and have vigilance.
As long as it's not your turn, creatures you control get +0/+3 and have lifelink.

You gain life equal to the number of creatures you control.
Each opponent loses life equal to the number of creatures they control.
Destroy all creatures, then exile all graveyards.

Lifelink
When Sunlight Dancer enters the battlefield, target opponent gains 4 life.

Flash
Flying
When Sunset Herald enters the battlefield, if it was cast, return to the battlefield all creature cards from your graveyard that were put there from the battlefield this turn.

Exile target attacking or blocking creature with power 3 or less.

Flying (This creature can't be blocked except by creatures with flying or reach.)

Sunwing has flying as long as it's your turn.

When Sunwright Scion enters the battlefield, put a +1/+1 counter on each other creature you control.
At the beginning of each combat, you may have target creature with a +1/+1 counter on it gain your choice of vigilance, lifelink, or trample until end of turn.

As Superset enters the battlefield, choose two abilities from among flying, first strike, lifelink, prowess, and vigilance.
Each creature you control with one of the chosen abilities has both the chosen abilities.

Each creature with a law counter on it can't attack or block.
{2}{W}, {T}: Remove all law counters from all permanents, then put a law counter on target creature.

When Suraj Militant enters the battlefield, target creature gets +1/+1 until end of turn.

Submerge up to two target attacking nontoken creatures an opponent controls. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Until end of turn, target creature gets +1/+1 and gains lifelink.

Wanderlust — When you cast this spell, you may copy it if you control four or more differently named lands. You may choose new targets for the copy.
Untap target creature you control. It gets +1/+1 and gains hexproof and indestructible until end of turn.

Regenerate target creature. (The next time this would be destroyed this turn, it isn't. Instead tap it.)

Enchant land
Enchanted land has “{W}, {T}: You gain 2 life.”