msem-instigator

Source Decay deals 2 damage to each opponent. Create two 1/1 colorless Servo artifact creature tokens.
Whenever a creature you control deals combat damage to a player, you may pay {2}{B}{R} and sacrifice it. If you do, return Source Decay from your graveyard to your hand.

Whenever you cast a noncreature spell, you may put a progress counter on Sovereign Skies.
[PROGRESS 2+] Indestructible
{T}: Add {C}.
[PROGRESS 9+] Sovereign Skies is a 9/9 Ship artifact creature with flying.

Flash
Flying
Whenever you cast a spell during an opponent's turn, target permanent doesn't untap during its controller's next untap step.

{T}: For each color among enchantments you control, add one mana of that color.
{2}{G}{G}, Sacrifice Sower of Seeds: Shuffle any number of enchantment cards from your graveyard into your library. Create an X/X black Horror creature token, where X is the number of enchantment cards shuffled into your library this way.

Enchant land
Enchanted land's name is Flowering Expanse.
Whenever enchanted land is tapped for mana, add one mana of any color.

Equipped creature gets +3/+1 and has reach.
Equip {4}

Spare Supplies enters tapped.
When Spare Supplies enters, draw a card.
{2}, {T}, Sacrifice Spare Supplies: Draw a card.

Spark New Life deals X damage to any target. You may put up to X land cards from your hand and/or graveyard onto the battlefield.

Return target instant or sorcery card from your graveyard to your hand. Then if this spell wasn't foretold, discard a card.
Exile Spark of Inspiration.
Foretell {R} (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.)

At the beginning of your end step, you may put a progress counter on Sparkline Harness.
[progress 1-3] Whenever an artifact creature you control attacks, it deals 1 damage to target opponent.
[progress 4+] Whenever a creature you control attacks, it deals 1 damage to target opponent.
Whenever a creature you control attacks, it deals 1 damage to target opponent.

Choose one or more —
• Counter target activated ability or triggered ability.
• Prevent all combat damage that would be dealt this turn.

Each creature you control that has been dealt damage this turn by a source you controlled has indestructible.

Colorless creatures you control have “{T}: Add {C}.”

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
Target creature gets -2/-2 until end of turn. If you're in a renaissance, it gets -5/-5 until end of turn instead.

When you cast this spell, create a token that's a copy of it.
Equipped creature gets +2/+2.
Equip {2}

Whenever you cast a noncreature spell, create a 1/1 colorless Servo artifact creature token.
{1}{U}, {T}, Exile three noncreature cards from your graveyard: Draw a card.

Until end of turn, target creature loses all abilities and has base power and toughness 1/1.
Draw a card, then discard a card.

When Spectral Kitsune enters, you may remove a counter from target player or permanent.

Prowess
Whenever you cast a noncreature spell, you may pay {R}. If you do, post a bounty on target creature. (Put a bounty counter on that creature. It has “When this creature dies, each opponent draws a card” as long as it has a bounty counter on it.)

Flip a coin. If you win the flip, draw two cards. Otherwise, discard two cards.

When Speed Reader enters, harmonize. (Trigger up to one harmony of a permanent you control.)
Harmony — Add {R}{R}.

As an additional cost to cast this spell, exile X cards from your graveyard.
Choose one —
• Target player mills X cards.
• Look at the top X cards of your library. Put one into your hand, and the rest on the bottom of your library in any order.

As an additional cost to cast this spell, put a -1/-1 counter on a creature you control.
Counter target spell.

Instant and sorcery spells your opponents cast cost {1} more to cast.

When Spellblade enters, you may exile an instant card with mana value 2 or less from your hand.
At the beginning of your end step, if equipped creature dealt damage to an opponent this turn, you may copy the exiled card. If you do, you may cast the copy without paying its mana cost.
Equip {2}