msem-instigator

Whenever you detain a permanent, you gain life equal to that permanent's mana value.

Whenever an artifact or enchantment you control enters, you may detain target nonland permanent. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.)

Choose one or both —
• Prevent all combat damage that would be dealt to creatures this turn.
• Detain target creature. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated.

Sunrise Orchard enters tapped unless you control a basic land.
As Sunrise Orchard enters, choose a color.
{T}: Add one mana of the chosen color.

{T}, Pay 1 life: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell.

Imperial Marketplace enters with a charge counter on it.
{T}: Add {C}.
{T}, Remove a charge counter from Imperial Marketplace: Put a +1/+1 counter on target creature you control.

{T}: Add {C}.
When Heavenly Temple enters, target creature gains flying until end of turn.
{2}: Return Heavenly Temple from the battlefield to its owner's hand.

{T}: Add {C}.
{1}: Clutch of the Coil becomes a 1/1 Snake creature with poisonous 2 until end of turn. It's still a land. (Whenever this creature deals combat damage to a player, that player gets two poison counters.)

{T}: Add {C}.
{3}, Discard Ancient Ossuary: Search your library for a land card, reveal it, put it into your hand, then shuffle.

Menace, trample, indestructible
Whenever Aghavaan Unleashed deals combat damage to a player, that player gets that many poison counters.
At the beginning of your end step, sacrifice another creature or transform Aghavaan Unleashed.

{T}: Add {C}.
At the beginning of each end step, if you control five or more Snake creatures, transform Aghavaan's Wound.

Sage's Ashes enters tapped.
{T}, Sacrifice Sage's Ashes: Put target card from a graveyard on top of its owner's library.
{3}, Exile Sage's Ashes from your graveyard: Draw a card.

Art of war — At the beginning of your end step, if Raiun Bay Junk dealt damage to an opponent this turn, put a +1/+1 counter on it.
Tap an untapped creature you control: Raiun Bay Junk becomes an artifact creature until end of turn.

Each instant and sorcery card you own that isn't on the battlefield has inscribe. The inscribe cost is equal to its mana cost. (Exile that spell card 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.)

Defender
A deck can have any number of cards named Dragonwall Fragment.
At the beginning of your upkeep, if you control twenty or more creatures named Dragonwall Fragment, you win the game.

Trample
Art of war — At the beginning of your end step, if Dragon's Wake dealt damage to an opponent this turn, gain control of target land for as long as Dragon's Wake remains on the battlefield.
Tap three untapped creatures you control: Dragon's Wake becomes an artifact creature until end of turn.

{3}, {T}: Choose a card name, then reveal a card at random from your hand. If that card has the chosen name, Cursed Scroll deals 2 damage to any target.

Equipped creature gets +3/+3.
Prevent all combat damage that would be dealt to equipped creature.
Equip {3}

Flash
First strike
If you cast Taiyohata Champion during your declare attackers step, it enters tapped and attacking.

Flash
When Shinrin Spellhunter enters, if an opponent cast a noncreature spell this turn, draw a card.

Noncreature spells your opponents cast cost {1} more to cast.

Flying, haste
Miyoga Firebird attacks each combat if able.
Whenever you cast your third instant or sorcery spell this turn, you may return Miyoga Firebird from your graveyard to the battlefield.

Poisonous 2 (Whenever this creature deals combat damage to a player, that player gets two poison counters.)
Snakes you control get +1/+1 and have poisonous 1. (Multiple instances of poisonous trigger separately.)

You may sacrifice a land. If you do, search your library for a land card, put that card onto the battlefield, then shuffle.
Inscribe {3}{G} ({3}{G}: 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.)