msem-instigator

{2}: Sparkline Dancer gains flying until end of turn.

Gestalt (When this or another creature enters under your control, you may merge it with the one in play, keeping counters and attachments. They become the permanent on top plus all abilities from under it.)
If you would gain life, you may put a +1/+1 counter on this creature instead.
When this creature has toughness 20 or greater, you win the game.

Spearhead deals X damage to target player. (Then exile this card. You may cast the creature later from exile.)

When Specialized Training Dummy enters, choose a card name.
Other creatures you control with the chosen name get +1/+1.

Choose one —
• Target creature gets +2/+2 and gains indestructible until end of turn if it has flying.
• Target creature gets +1/+1 and gains flying until end of turn.

Counter target noncreature spell unless its controller pays {2}.

Enchant creature
When Sphinx's Advice enters, draw a card.
Enchanted creature has flying.

Once each turn, when one or more cards are put into an opponent's graveyard from their library, you may draw a card.

Lifelink
Revive {W} ({W}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Prevent all combat damage that would be dealt to and dealt by target creature this turn.
Inscribe {2}{U} ({2}{U}: Exile this card from your hand 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.)

Flying
At the beginning of your draw step, if Spirit of the Mountains is tapped, put three +1/+1 counters on it.

Target creature gets -1/-1 until end of turn. (Cast a copy of this spell once while this creature is on the battlefield.)

Enchant creature
When Sporeflow Mantle enters, germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)
Enchanted creature has vigilance.

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.

Target creature gains haste until end of turn. That creature attacks or blocks this turn if able.

Exile target artifact an opponent controls. Until end of turn, you may cast a copy of that card. (You still pay its costs.)

Flying
Whenever you foretell a card or cast a foretold spell, you may scry 1.

Counter target artifact or sorcery spell.

Equipped creature gets +1/+1.
At the beginning of combat on your turn, choose flying, first strike, vigilance, trample, or haste. Equipped creature gains that ability until end of turn.
Equip {2}

{1}, {T}: Untap target creature.

As Stained Reliquary enters, choose a card type.
{T}: Target player exiles a card from their graveyard of the chosen type.
{2}, Exile Stained Reliquary: Exile all graveyards. Create a tapped 1/1 white Spirit creature token with flying.

Whenever a creature enters under your team's control, reveal the top card of your library. If it's a creature card, you gain 2 life.

Lifelink
When Stalked Healer enters, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Target creature you control gains indestructible until end of turn. If that creature is a Scout, you gain 1 life for each land you control.

Whenever you draw a card, put a dream counter on Stargazing.
Remove seven dream counters from Stargazing and exile it: Shuffle your hand and graveyard into your library, then draw seven cards.