msem-instigator

Flying
When Cloudchaser Kestrel enters, destroy target enchantment.
{W}: Target permanent becomes white until end of turn.

Foretell {X}{B} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Target creature gets -X/-X until end of turn. If this spell was foretold, you gain X life.

Haste
When Maddened Inferno leaves the battlefield, discard a card, then draw two cards.
Evoke {1}{R} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

Destroy target nonland permanent. If it had flying, put a flying counter on a creature you control. Do the same for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

Reach
When Archived Intelligence enters, surveil 2. Then if you control a token, draw a card.

When this creature enters, if you gained or lost life this turn, it seeks valor. (Give it that Oath Aura. Fulfill it by it dealing combat damage to a player to create a 2/1 white Soldier token.)

Flash
Oscanthor, Trader's Ruin can't be blocked.
Whenever a creature you control deals combat damage to a player, draw a card.

Choose one —
• Counter target spell unless its controller pays {X}.
• Counter target spell with mana value X.

Whenever Failed Martyr attacks, each other attacking creature gets +1/+0 until end of turn.
Attain {4}{W} ({4}{W}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

{1}, {T}: Draw a card, then exile a card from your hand face down until Cluttered Study leaves the battlefield. (It returns to your hand.)
{3}, {T}: Shuffle Cluttered Study into its owner's library.

At the beginning of your upkeep, mill two cards.
{1}{B}{B}: Until end of turn, Gaunt Abnormality becomes a copy of target creature card in your graveyard, except it's 3/3.

Ward—{2} or 2 life. (Whenever this becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2} or 2 life.)
Whenever another permanent becomes the target of a spell you control, create a token that's a copy of it. Sacrifice that token at the beginning of your next turn's end step.

Mill four cards. You may put up to two cards from among the milled cards into your hand. Each player loses 2 life.

Flying
Whenever Heroes of Wars Past attacks, attacking Human creatures get +1/+1 and gain flying until end of turn.

Serene Hart can't be blocked by creatures with power 4 or greater.

Whenever Hero's Henchman attacks, another target creature you control gets +1/+1 until end of turn.

Ward {4}
{4}{U}: Cyclesmith Oracle can't be blocked until end of turn. This ability costs {X} less to activate, where X is the number of card types among cards in your graveyard.

Whenever Deluge Crab perseveres, target opponent mills three cards. (A creature perseveres when it survives damage.)

Equipped creature gets +1/+3.
{0}: Until end of turn, Ancestor's Bulwark becomes a 1/3 Spirit artifact creature with flying. Activate this ability only if it isn't attached.
Equip {3}

Sunspear Surge deals 2 damage to target creature and 1 damage to each other creature.

You may change the targets of target instant spell, sorcery spell, or activated ability.

Whenever you make first contact, create a Treasure token. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)
{T}, Return an artifact with mana value X you control to its owner's hand: You may cast a spell with mana value X plus 1 or less and with a different name from your hand without paying its mana cost.

Enchant creature
Enchanted creature gets +2/-2.

Whenever you draw a card, you may exile the top card of your library.
{3}{U}{U}, Sacrifice Collector of Memories: Shuffle your hand into your library, then put each card exiled with Collector of Memories into its owner's hand.

Create a token that's a copy of target creature.
Metamorph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)