msem-instigator

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Whenever you cast a noncreature spell, you gain life equal to its mana value.

Prowess
Whenever High Rollers Croupier attacks, you may put a lore counter on a Saga you control.

Flash
Prowess
When High Rollers Esteemed enters, you may choose new targets for target spell or ability unless its controller has High Rollers Esteemed deal 4 damage to them.

Lifelink
Triggered abilities of creatures you control that would trigger only when that creature enters instead trigger whenever you gain life for the first time each turn.

Flying
When High Spirits enters, target creature gains flying until end of turn.

Flash
Whenever you cast another spell with flash or an instant, put a +1/+1 counter on High Street Shadow.

Whenever High-Priestess Nebti attacks or blocks, create a 2/2 white Cat creature token.
{1}{R}{R}, Tap an untapped Cat creature you control: That creature fights target creature you don't control.

When Highbeam Hulk enters, you may discard a card. If you do, draw a card.
Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever you draw a card, put a +1/+1 counter on Highborn Meditant.

({T}: Add {R}.)
As Highland Dunes enters, you may pay 1 life. If you don't, Highland Dunes enters tapped.

Whenever Highland Elk deals damage to a creature, return that creature to its owner's hand (if it's still on the battlefield.)

Concord — Highland Hermit gets +1/+1 and has hexproof as long as there are four or more card types among permanents you control.

({T}: Add {R} or {G}.)
Highland Vale enters tapped.

{T}: Add {G}.
Dominance — {T}: Add {G}{G}. Activate only if you control the creature with the greatest power or tied for the greatest power.

Flash
If a spell or ability an opponent controls would cause you to discard a creature card, you may put that card onto the battlefield instead.

Whenever Highpeak Rider attacks, search your library for a land card and put it onto the battlefield, then shuffle. Sacrifice that land at the beginning of the next end step.

Flying
You may look at the top card of your library any time.

Flash
When Highpoint Guru enters, scry X, where X is the number of Monks you control.

Flying, lifelink

Highpoint Shrine enters tapped unless you played it from exile.
{T}: Add {W} or {U}.

Flying
When Highspire Informant enters, scry 1.

Destroy target tapped creature.
Menagerie — If there are five or more creature types among creatures you control, that creature's controller discards a card.

Wanderlust — Whenever Highwild Survivalist attacks, add {R} or {G}. If you control four or more differently named lands, add {R}{G} instead. Until end of turn, you don't lose mana added this way as steps and phases end.

This spell can't be countered.
Enchant land
At the beginning of combat on your turn, untap enchanted land. It becomes a 6/6 green Lizard creature with haste until end of turn. It's still a land.

When Hila Okunos enters, look at the top six cards of your library. You may reveal an Aura or Aurashaper card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.
Whenever another nontoken Aura or Aurashaper you control enters, create a token that's a copy of it.