Whenever another nontoken creature you control enters, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Each other non-Human creature you control enters with an additional +1/+1 counter on it.

Menace When Atris enters, target opponent looks at the top three cards of your library and separates them into a face-down pile and a face-up pile. Put one pile into your hand and the other into your graveyard.

Whenever Carth enters or a planeswalker you control dies, look at the top seven cards of your library. You may reveal a planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in a random order. Planeswalkers' loyalty abilities you activate cost an additional [+1] to activate.

Whenever Elrond or another creature you control enters, scry 1. If this is the second time this ability has resolved this turn, the Ring tempts you.

When Fblthp enters, draw a card. If it entered from your library or was cast from your library, draw two cards instead. When Fblthp becomes the target of a spell, shuffle Fblthp into its owner's library.

When Greta enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {G}, Sacrifice a Food: Put a +1/+1 counter on target creature. Activate only as a sorcery. {1}{B}, Sacrifice a Food: You draw a card and you lose 1 life.

Whenever a creature you control with power 4 or greater enters, draw a card. −1: Untap target permanent.

Flash When Niambi enters, you may return another target creature you control to its owner's hand. If you do, you gain life equal to that creature's mana value. {1}{W}{U}, {T}, Discard a legendary card: Draw two cards.

Arixmethes enters tapped with five slumber counters on it. As long as Arixmethes has a slumber counter on it, it's a land. (It's not a creature.) Whenever you cast a spell, you may remove a slumber counter from Arixmethes. {T}: Add {G}{U}.

When Kalain enters, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.") Other creatures you control enter with an additional +1/+1 counter on them for each mana from a Treasure spent to cast them.

Whenever Omo enters or attacks, put an everything counter on each of up to one target land and up to one target creature. Each land with an everything counter on it is every land type in addition to its other types. Each nonland creature with an everything counter on it is every creature type.

Whenever another creature enters, its controller may draw a card if its power is greater than each other creature's power. {G}, {T}: Add X mana in any combination of colors, where X is the greatest power among creatures you control.

When Sutina enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Whenever Sutina attacks, you may return a land you control to its owner's hand. When you do, put a +1/+1 counter on target creature.

When Honest Rutstein enters, return target creature card from your graveyard to your hand. Creature spells you cast cost {1} less to cast.

When Lazav enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.) {X}: Lazav becomes a copy of target creature card in your graveyard with mana value X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types, and it has this ability.

When Rona enters, you may exile target historic card from your graveyard. (Artifacts, legendaries, and Sagas are historic.) You may cast spells from among cards exiled with Rona. {4}, {T}: Exile the top card of your library.

Whenever another nontoken creature you control enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") Sacrifice three Foods: Return target historic card from your graveyard to your hand. (Artifacts, legendaries, and Sagas are historic.)

Flash When Samwise enters, choose up to one target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand. Then the Ring tempts you.

Dakkon enters with a number of loyalty counters on him equal to the number of lands you control. +1: Surveil 2. −3: Exile target creature. −6: You may put an artifact card from your hand or graveyard onto the battlefield.

When Lagrella enters, exile any number of other target creatures controlled by different players until Lagrella leaves the battlefield. When an exiled card enters under your control this way, put two +1/+1 counters on it.

Whenever a legendary creature you control with mana value 4 or greater enters, you become the monarch. At the beginning of your end step, if you're the monarch, create two 1/1 white Human Soldier creature tokens.

Whenever Gylwain or another nontoken creature you control enters, choose one — • Create a Royal Role token attached to that creature. • Create a Sorcerer Role token attached to that creature. • Create a Monster Role token attached to that creature.

Whenever Jedit Ojanen or another legendary creature you control enters, you may pay {G}. If you do, create a 2/2 green Cat Warrior creature token with forestwalk. (It can't be blocked as long as defending player controls a Forest.)