Shalai and Hallar

an Angel enters the battlefield — 354 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar enters:

1. Bishop of Wings — gains you 4 life
2. Youthful Valkyrie — puts a +1/+1 counter on itself
3. Seraph Sanctuary — gains you 1 life
4. Righteous Valkyrie — gains you that creature's toughness life

an Angel creature it applies animate to — 357 cards in the game can cause this.

1. Angelic Armaments — Angelic Armaments gives Shalai and Hallar life as a creature

356 other cards cause it too. These are the ones with the most connections.

an Elf attacks — 723 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar attacks:

1. Celeborn the Wise — scries
2. Tyvar the Bellicose — grants deathtouch
3. Harald Unites the Elves — shrinks a creature by -1/-1
4. Arboreal Alliance — triggers

a nontoken Elf enters the battlefield — 728 cards in the game can cause this (Shalai and Hallar is one).

1. Wirewood Hivemaster — When Shalai and Hallar enters, Wirewood Hivemaster makes a token

an Elf enters the battlefield — 752 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar enters:

1. Wolverine Riders — gains you its toughness life
2. Elvish Warmaster — makes a token
3. Thranduil, the Elvenking — draws you 2 cards
4. Elvish Vanguard — puts a +1/+1 counter on itself
5. Marwyn, the Nurturer — puts a +1/+1 counter on itself
6. Woodland Weavemaster — gets +1/+1
7. High Perfect Morcant — puts a counter on a permanent an opponent controls
8. Maralen, Fae Ascendant — exiles a card from an opponent's library

put a counter on a creature — 2,691 cards in the game can cause this.

1. Primeval Bounty — When a creature gets a counter thanks to Primeval Bounty, Shalai and Hallar deals that much damage
2. Defiler of Vigor — When a creature gets a counter thanks to Defiler of Vigor, Shalai and Hallar deals that much damage
3. Calix, Guided by Fate — When a creature gets a counter thanks to Calix, Guided by Fate, Shalai and Hallar deals that much damage
4. Swarmborn Giant — When Swarmborn Giant gets a counter, Shalai and Hallar deals that much damage
5. War Elemental — When War Elemental gets a counter, Shalai and Hallar deals that much damage
6. Boss's Chauffeur — When Boss's Chauffeur gets a counter, Shalai and Hallar deals that much damage
7. Scurry Oak — When Scurry Oak gets a counter, Shalai and Hallar deals that much damage
8. Mighty Mutanimals — When a creature gets a counter thanks to Mighty Mutanimals, Shalai and Hallar deals that much damage
9. Gala Greeters — When Gala Greeters gets a counter, Shalai and Hallar deals that much damage
10. Lita, Little Orphan Amphibian — When Lita, Little Orphan Amphibian gets a counter, Shalai and Hallar deals that much damage

2,681 other cards cause it too. These are the ones with the most connections.

anything deals noncombat damage — 3,068 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar deals noncombat damage:

1. Quest for Pure Flame — puts a quest counter on itself
2. Fear of Burning Alive — deals that amount damage
3. Niv-Mizzet, Visionary — draws you that many cards
4. Chandra's Incinerator — deals that much damage
5. Chandra's Pyreling — gets +1/+0
6. Talon of Pain — puts a charge counter on itself
7. Asgardian Inspiration — returns itself from the graveyard
8. Thor, Guardian of Midgard — exiles a card from your library
9. Virtue of Courage // Embereth Blaze — exiles a card from your library

37 other cards care about it too. These are the ones with the most connections.

life is lost — 3,160 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar makes a player lose life:

1. Far Fortune, End Boss — raises your speed
2. Zahur, Glory's Past — raises your speed
3. Mendicant Core, Guidelight — raises your speed
4. Aether Syphon — raises your speed
5. Vnwxt, Verbose Host — raises your speed
6. Embalmed Ascendant — raises your speed
7. Slick Imitator — raises your speed
8. Nesting Bot — raises your speed
9. Howlsquad Heavy — raises your speed
10. Hour of Victory — raises your speed

46 other cards care about it too. These are the ones with the most connections.

a creature attacks — 17,934 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar attacks:

1. Anthem of Rakdos — gives +2/+0
2. Adaptive Omnitool — searches a library
3. Kindred Discovery — draws you 1 card
4. Saw — sacrifices a creature

186 other cards care about it too. These are the ones with the most connections.

anything attacks — 17,934 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar attacks:

1. Temmet, Naktamun's Will — draws you 1 card
2. Grim Javelineer — gives +1/+0
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers
6. Campsite Cuisine — sacrifices a Food
7. Gossip's Talent — triggers
8. Banon, the Returners' Leader — draws and discards
9. Toph, Earthbending Master — puts a counter on a permanent
10. Three Dog, Galaxy News DJ — sacrifices an Aura

115 other cards care about it too. These are the ones with the most connections.

a creature blocks — 17,934 cards in the game can cause this (Shalai and Hallar is one).

1. Tide of War — When Shalai and Hallar blocks, Tide of War sacrifices a creature

27 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 19,800 cards in the game can cause this (Shalai and Hallar is one).

When Shalai and Hallar enters:

1. Slash, Reptile Rampager — deals 2 damage
2. Gimli of the Glittering Caves — puts counters on a permanent
3. Ray Fillet, Wave Warrior — puts a counter on itself
4. Legolas Greenleaf — puts a counter on a permanent
5. The Neutrinos — gets +1/+0
6. Wingnut, Bat on the Belfry — grants flying, haste and menace
7. Aetherstorm Roc — puts a counter on a permanent you control
8. Raphael, Most Attitude — exiles a card from your library

303 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 26,499 cards in the game can cause this (Shalai and Hallar is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Shalai and Hallar enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

40 other cards care about it too. These are the ones with the most connections.