msem-instigator

If a creature an opponent controls would die, exile it instead.
Whenever Rocket Poacher deals combat damage to a player, put a card exiled with it onto the battlefield under your control.

Create a number of 3/3 green Elemental creature tokens equal to the number of differently named lands you control.
Fuse (You may cast one or both halves of this card from your hand.)

Defender
As long as you control an enchantment, Rooted Cavalier has vigilance and can attack as though it didn't have defender.

{1}{U}, {T}, Discard a card: Reveal the top card of your library. Counter target spell unless its controller pays {X}, where X is the mana value of that card.

{T}, Sacrifice Rootshambler: Untap all basic lands you control.

At the beginning of each upkeep, choose another permanent with the greatest mana value among permanents. Its controller sacrifices it.

Lifelink, haste
Equip abilities that target Rose of Sunspear cost {X} less to activate, where X is her power.

{6}: Create a 1/1 black Worm creature token.

{2}{G}: Rotted Kalak gains indestructible until end of turn.
Revive {3}{B} ({3}{B}, 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.)

When Rotting Sunseeker dies, return target creature card with power 2 or less from your graveyard to your hand.

{T}: Add {B} or {G}. You lose 1 life.

Each Rogue you control can't be blocked by creatures with greater power than it.
Whenever a Rogue deals combat damage to a player, gain control of target nonland permanent that player controls unless that player pays {1}.

Enchant creature
Enchanted creature gets -3/-3.

Flying
If a +1/+1 counter would be put on a creature you control, you may instead put your choice of a flying counter, a vigilance counter, or a trample counter on it.

Rugged Highlands enters the battlefield tapped.
When Rugged Highlands enters the battlefield, you gain 1 life.
{T}: Add {R} or {G}.

{T}: Add {C}.
{T}: Add {C} for each six cards in your graveyard.

({T}: Add {B} or {R}.)
Ruined Shrine enters the battlefield tapped unless you control two or more basic lands.

{T}: Add {C}.
{1}, {T}: Transform Ruined Theater.

Target creature phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

Enchant creature
Enchanted creature gets +3/+0 and has menace.
Whenever enchanted creature deals combat damage to a player, discard a card, then draw a card.

Whenever you make first contact, Runic Enforcer gains lifelink until end of turn. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

({T}: Add {R} or {W}.)
As Ruptured Citadel enters the battlefield, you may pay {1}. If you don't, Ruptured Citadel enters the battlefield tapped.

({T}: Add {W} or {B}.)
As Ruptured Expanse enters the battlefield, you may pay {1}. If you don't, Ruptured Expanse enters the battlefield tapped.

({T}: Add {U} or {R}.)
As Ruptured Falls enters the battlefield, you may pay {1}. If you don't, Ruptured Falls enters the battlefield tapped.

({T}: Add {B} or {R}.)
As Ruptured Flats enters the battlefield, you may pay {1}. If you don't, Ruptured Flats enters the battlefield tapped.