Mr. Foxglove

a Rogue creature enters the battlefield — 249 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

1. Cloak and Dagger — When Mr. Foxglove enters, Cloak and Dagger triggers

life is gained — 1,189 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

When Mr. Foxglove gains life:

1. Marina Vendrell's Grimoire — draws you that many cards
2. Cleric Class — puts a counter on a creature
3. Gourmand's Talent — makes a token
4. Elenda's Hierophant — puts a +1/+1 counter on itself
5. Attended Healer — makes a token
6. Field-Tested Frying Pan — gets +X/+X, where X is the amount of life you gained
7. Vanguard Seraph — surveils
8. Nykthos Paragon — puts that many counters on a creature
9. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers
10. Sphinx of the Revelation — puts a counter on a permanent you control

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

a card is drawn — 2,369 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

When Mr. Foxglove makes a player draw a card:

1. Aether Syphon — mills a card
2. Diviner's Wand — gets +1/+1
3. Ominous Seas — puts a foreshadow counter on itself
4. Dream Trawler — gets +1/+0
5. Iron Man, Armored Avenger — puts a counter on a creature
6. The Astonishing Ant-Man — puts a +1/+1 counter on itself
7. Psychosis Crawler — makes each opponent lose 1 life
8. Lyla, Holographic Assistant — puts a counter on a creature
9. Data, New Life — puts a +1/+1 counter on itself
10. Chasm Skulker — puts a +1/+1 counter on itself

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

a creature attacks — 9,882 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

When Mr. Foxglove attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Screaming Swarm — mills a card
4. Imperious Mindbreaker — mills a card
5. Staff of Titania — makes a token
6. Glory Bearers — gives +0/+1
7. Saw — sacrifices a creature
8. Ultima Weapon — kills a creature an opponent controls
9. Super-Soldier Serum — triggers
10. Throwing Knife — sacrifices itself

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

anything attacks — 9,882 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

When Mr. Foxglove attacks:

1. ED-E, Lonesome Eyebot — puts a quest counter on itself
2. Surgical Suite // Hospital Room — puts a counter on a creature
3. Madame Web, Clairvoyant — mills a card
4. Apothecary White — makes a token
5. Bonny Pall, Clearcutter — draws you 1 card
6. Guide of Souls — triggers
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Toph, Earthbending Master — puts a counter on a permanent
10. Dyadrine, Synthesis Amalgam — triggers

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

a creature blocks — 9,882 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

When Mr. Foxglove blocks:

1. Dead-Iron Sledge — kills a creature
2. Dwindle — kills a creature

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

a creature enters the battlefield — 10,967 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

1. Quantum Riddler — When Quantum Riddler enters thanks to Mr. Foxglove, it draws you 1 card
2. Ray Fillet, Wave Warrior — When Mr. Foxglove enters, Ray Fillet, Wave Warrior puts a counter on itself
3. Legolas Greenleaf — When Mr. Foxglove enters, Legolas Greenleaf puts a counter on a permanent
4. Shadow Puppeteers — When Shadow Puppeteers enters thanks to Mr. Foxglove, it makes 2 tokens
5. Sygg, Wanderwine Wisdom // Sygg, Wanderbrine Shield — When Sygg, Wanderwine Wisdom // Sygg, Wanderbrine Shield enters thanks to Mr. Foxglove, it grants a keyword
6. Aetherstorm Roc — When a creature enters thanks to Mr. Foxglove, Aetherstorm Roc puts a counter on a permanent you control
7. Elite Scaleguard — When Elite Scaleguard enters thanks to Mr. Foxglove, it puts a counter on a permanent

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

anything enters the battlefield — 15,547 cards in Mr. Foxglove's colors can cause this (Mr. Foxglove is one).

1. Prowl, Stoic Strategist // Prowl, Pursuit Vehicle — When a creature enters thanks to Mr. Foxglove, Prowl, Stoic Strategist // Prowl, Pursuit Vehicle puts a +1/+1 counter on itself
2. The Earth King — When The Earth King enters thanks to Mr. Foxglove, it makes a token
3. SP//dr, Piloted by Peni — When SP//dr, Piloted by Peni enters thanks to Mr. Foxglove, it puts a counter on a creature
4. Mu Yanling, Wind Rider — When Mu Yanling, Wind Rider enters thanks to Mr. Foxglove, it makes a token
5. Ellivere of the Wild Court — When Ellivere of the Wild Court enters thanks to Mr. Foxglove, it makes a token
6. Haliya, Ascendant Cadet — When Haliya, Ascendant Cadet enters thanks to Mr. Foxglove, it puts a counter on a creature
7. Nazahn, Revered Bladesmith — When Nazahn, Revered Bladesmith enters thanks to Mr. Foxglove, it searches a library
8. Byrke, Long Ear of the Law — When Byrke, Long Ear of the Law enters thanks to Mr. Foxglove, it puts a counter on a creature
9. Ultimecia, Temporal Threat — When Ultimecia, Temporal Threat enters thanks to Mr. Foxglove, it taps a creature an opponent controls
10. Spider-Man 2099, Miguel O'Hara — When Spider-Man 2099, Miguel O'Hara enters thanks to Mr. Foxglove, it triggers

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