Borderland Explorer

a Scout deals combat damage — 353 cards in the game can cause this (Borderland Explorer is one).

1. Vaan, Street Thief — When Borderland Explorer deals combat damage, Vaan, Street Thief exiles a card from a library

an Elf attacks — 723 cards in the game can cause this (Borderland Explorer is one).

When Borderland Explorer 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 (Borderland Explorer is one).

1. Wirewood Hivemaster — When Borderland Explorer enters, Wirewood Hivemaster makes a token

an Elf enters the battlefield — 752 cards in the game can cause this (Borderland Explorer is one).

When Borderland Explorer enters:

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

1 other card cares about it too. These are the ones with the most connections.

a library is searched — 982 cards in the game can cause this (Borderland Explorer is one).

When a land searches a library thanks to Borderland Explorer:

1. River Song — puts a +1/+1 counter on itself
2. Archivist of Oghma — gains you 1 life
3. Wan Shi Tong, Librarian — puts a +1/+1 counter on itself
4. Ob Nixilis, Unshackled — makes an opponent sacrifice a creature

a card is discarded — 2,042 cards in the game can cause this (Borderland Explorer is one).

When Borderland Explorer makes a player discard a card:

1. Ivora, Insatiable Heir — puts a +1/+1 counter on itself
2. Cool but Rude — deals 2 damage
3. Containment Construct — brings a card back
4. Moonstone, Harsh Mistress — brings a card back
5. Sangromancer — gains you 3 life
6. Lo and Li, Royal Advisors — puts a counter on an Advisor
7. Nath of the Gilt-Leaf — makes a token
8. Inti, Seneschal of the Sun — exiles a card from your library
9. Pitchstone Wall — sacrifices itself
10. Currency Converter — exiles it

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

a card in a graveyard — 7,589 cards in the game can cause this (Borderland Explorer is one).

1. Samwise Gamgee — Borderland Explorer puts cards into the graveyard that Samwise Gamgee can bring back
2. Bloodbond March — Borderland Explorer puts cards into the graveyard that Bloodbond March can bring back
3. Thor, God of Thunder — Borderland Explorer puts cards into the graveyard that Thor, God of Thunder can bring back
4. Gale, Waterdeep Prodigy — Borderland Explorer puts cards into the graveyard that Gale, Waterdeep Prodigy can bring back
5. Harness the Storm — Borderland Explorer puts cards into the graveyard that Harness the Storm can bring back
6. Transplant Theorist — Borderland Explorer puts cards into the graveyard that Transplant Theorist can bring back
7. Heart-Shaped Herb — Borderland Explorer puts cards into the graveyard that Heart-Shaped Herb can bring back
8. Wayward Angel — Borderland Explorer fills your graveyard toward the 7 or more cards Wayward Angel needs
9. Rescue from the Underworld — Borderland Explorer puts cards into the graveyard that Rescue from the Underworld can bring back
10. Victimize — Borderland Explorer puts cards into the graveyard that Victimize can bring back

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

anything goes to a graveyard — 7,589 cards in the game can cause this (Borderland Explorer is one).

When a card hits the graveyard thanks to Borderland Explorer:

1. The Haunt of Hightower — puts a +1/+1 counter on itself
2. Duskmantle Guildmage — makes each opponent lose 1 life
3. Vulturous Zombie — puts a +1/+1 counter on itself
4. Quest for Ancient Secrets — puts a quest counter on itself
5. Bloodchief Ascension — makes each opponent lose 2 life
6. Compost — draws you 1 card
7. Planar Void — hits a graveyard
8. Measure of Wickedness — gives an opponent control of itself
9. Energy Field — sacrifices itself

2 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 (Borderland Explorer is one).

When Borderland Explorer attacks:

1. Far Fortune, End Boss — deals 1 damage
2. Temmet, Naktamun's Will — draws you 1 card
3. Invisible Woman — triggers
4. Caesar, Legion's Emperor — sacrifices a creature
5. Guide of Souls — triggers

126 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 (Borderland Explorer is one).

When Borderland Explorer attacks:

1. Adaptive Omnitool — searches a library
2. Saw — sacrifices a creature

197 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 (Borderland Explorer is one).

When Borderland Explorer enters:

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

346 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 (Borderland Explorer is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When Borderland Explorer enters, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself

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