Foil

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

When Foil 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. Lazotep Chancellor — puts 2 counters on a Zombie or Army
6. Magmakin Artillerist — deals that much damage
7. Inti, Seneschal of the Sun — exiles a card from your library
8. Pitchstone Wall — sacrifices itself
9. Currency Converter — exiles it
10. Hostile Investigator — triggers

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

an instant is cast — 3,931 cards in the game can cause this (Foil is one).

1. Lunar Mystic — When Foil is cast, Lunar Mystic draws you 1 card
2. Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time — When Foil is cast, Ojer Pakpatiq, Deepest Epoch // Temple of Cyclical Time grants rebound
3. Repeated Reverberation — When Foil is cast, Repeated Reverberation copies an ability
4. Riku of Two Reflections — When Foil is cast, Riku of Two Reflections copies a spell
5. Sword of Wealth and Power — When Foil is cast, Sword of Wealth and Power copies a spell
6. Lilah, Undefeated Slickshot — When Foil is cast, Lilah, Undefeated Slickshot gets +1/+1
7. Gale, Waterdeep Prodigy — When Foil is cast, Gale, Waterdeep Prodigy brings a card back
8. Harness the Storm — When Foil is cast, Harness the Storm brings a card back
9. In the Eye of Chaos — When Foil is cast, In the Eye of Chaos counters a spell
10. Niblis of Frost — When Foil is cast, Niblis of Frost taps a creature an opponent controls

427 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 (Foil is one).

1. Samwise Gamgee — Foil puts cards into the graveyard that Samwise Gamgee can bring back
2. Bloodbond March — Foil puts cards into the graveyard that Bloodbond March can bring back
3. Transplant Theorist — Foil puts cards into the graveyard that Transplant Theorist can bring back
4. Heart-Shaped Herb — Foil puts cards into the graveyard that Heart-Shaped Herb can bring back
5. Wayward Angel — Foil fills your graveyard toward the 7 or more cards Wayward Angel needs
6. Rescue from the Underworld — Foil puts cards into the graveyard that Rescue from the Underworld can bring back
7. Victimize — Foil puts cards into the graveyard that Victimize can bring back
8. Bound // Determined — Foil puts cards into the graveyard that Bound // Determined can bring back
9. Enlightened Confidant — Foil puts cards into the graveyard that Enlightened Confidant can bring back
10. Tergrid, God of Fright // Tergrid's Lantern — Foil puts cards into the graveyard that Tergrid, God of Fright // Tergrid's Lantern 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 (Foil is one).

When a card hits the graveyard thanks to Foil:

1. Quest for Ancient Secrets — puts a quest counter on itself
2. Planar Void — hits a graveyard
3. Measure of Wickedness — gives an opponent control of itself
4. Energy Field — sacrifices itself

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

anything is cast — 31,128 cards in the game can cause this (Foil is one).

1. Windrider Wizard — When Foil is cast, Windrider Wizard draws you 1 card
2. Relic Amulet — When Foil is cast, Relic Amulet puts a charge counter on itself
3. Rockslide Sorcerer — When Foil is cast, Rockslide Sorcerer deals 1 damage
4. Umara Wizard // Umara Skyfalls — When Foil is cast, Umara Wizard // Umara Skyfalls grants flying
5. Alania, Divergent Storm — When Foil is cast, Alania, Divergent Storm makes an opponent draw 1 card
6. Umara Mystic — When Foil is cast, Umara Mystic gets +2/+0
7. Master of Winds — When Foil is cast, Master of Winds triggers

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