msem-instigator

First strike
Whenever an opponent casts a noncreature spell, you gain 2 life.

Counter target spell.
Create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)

Whenever you draw a card, put a hatch counter on Reefcrown Egg.
{T}, Sacrifice Reefcrown Egg: You may put a creature card with mana value less than or equal to the number of hatch counters on Reefcrown Egg from your hand onto the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)

Kicker {1}{U} (You may pay an additional {1}{U} as you cast this spell.)
Counter target creature spell. If this spell was kicked, create a 1/1 colorless Thopter artifact creature token with flying.

Converge — Exile up to X nonland permanents you control, where X is the number of colors of mana spent to cast Reenter Orbit, then return them to the battlefield under your control.

Draw two cards, then discard a card.

Enchant creature
Enchanted creature gets +2/+2 for each other enchantment you control.

Each creature you control gets +1/+1 for each other creature you control with the same name.

Indestructible
When Reflected Worldwalker enters, each player puts their hand into their sideboard.

Flying
{2}{U}: Switch target creature's power and toughness until end of turn.

As Reflective Stalker enters, choose a noncreature card name.
When Reflective Stalker enters, if it was cast, create a token that's a copy of it.
Spells your opponents cast with the chosen name cost {2} more to cast.

Destroy up to one target artifact. Create a Gold token. (It's an artifact with “Sacrifice this artifact: Add one mana of any color.”)

Return up to one target artifact card from your graveyard to your hand.
Put the bottom card of your library into your hand.

Each player exiles all permanents they control, draws that many cards, then puts up to that many permanent cards from their hand onto the battlefield. Exile Reform Reality.

Flying, lifelink

Choose one —
• Change all targets of target spell or ability.
• All damage that would be dealt to target creature this turn is dealt to another target creature instead.

Choose target player. Until end of turn, if a spell or ability that player controls would cause them to draw a card, each of their opponents draws a card instead.

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the next end step.)

Destroy all creatures. If a Reflection would be destroyed this way, its owner shuffles it into their library instead.

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Refulgent Flare deals 3 damage to any target. If a permanent dealt damage this way would die this turn, exile it instead.
3 | You gain 3 life.

Return target creature you own to your hand.
Scry 1.

When Refuse Trawler enters, you may pay {G}. If you do, choose one —
• Return a permanent card from your graveyard to your hand.
• Rediscover a permanent card. (Look at the top card of your library. You may reveal it and put it into your hand if it's a permanent card. Otherwise, put it back or into your graveyard.)

Refuse to Submit deals 3 damage to any target. If that target is an attacking creature, it deals 5 damage instead.

Counter target spell.
{1}{U}, Exile Refute from your graveyard: Draw a card.