Professor Dellian Fel

a planeswalker it grants abilities to — 312 cards in the game can cause this.

1. Way of the Deathbringer — Way of the Deathbringer gives Professor Dellian Fel an extra ability
2. Way of the Wildspeaker — Way of the Wildspeaker gives Professor Dellian Fel an extra ability

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

a planeswalker is cast — 361 cards in the game can cause this (Professor Dellian Fel is one).

When Professor Dellian Fel is cast:

1. Jaya's Phoenix — returns itself from the graveyard
2. Interplanar Beacon — gains you 1 life
3. Defiler of Vigor — puts a counter on a creature
4. Defiler of Flesh — gives +1/+1
5. Primeval Bounty — puts 3 counters on a creature
6. Tetsuko Umezawa, Pursuer — gets +1/+1
7. Thor, God of Thunder — deals that spell's mana value damage
8. Krile Baldesion — brings a card back
9. Summon: Good King Mog XII — makes a token
10. Blood Funnel — sacrifices a creature

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

a planeswalker enters the battlefield — 366 cards in the game can cause this (Professor Dellian Fel is one).

When Professor Dellian Fel enters:

1. Builder's Talent — puts a counter on a creature
2. Brainstealer Dragon — makes a player lose life equal to its mana value
3. Cloudstone Curio — triggers

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

life is gained — 2,076 cards in the game can cause this (Professor Dellian Fel is one).

When Professor Dellian Fel gains life:

1. Dina, Soul Steeper — makes each opponent lose 1 life
2. Marina Vendrell's Grimoire — draws you that many cards
3. South Wind Avatar — makes each opponent lose 1 life
4. Rodolf Duskbringer — grants indestructible
5. Fiendish Panda — puts a +1/+1 counter on itself
6. Veinwitch Coven — brings a card back
7. Cleric Class — puts a counter on a creature
8. Lich's Mastery — draws you that many cards
9. Wall of Limbs — puts a +1/+1 counter on itself
10. Ratchet, Field Medic // Ratchet, Rescue Racer — triggers

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

a creature in a graveyard — 2,769 cards in the game can cause this (Professor Dellian Fel is one).

Professor Dellian Fel puts cards into the graveyard that:

1. Chainer, Dementia Master — can bring back
2. The Deck of Many Things — can bring back
3. Afterlife from the Loam — can bring back
4. Crypt Champion — can bring back
5. Victor, Valgavoth's Seneschal — can bring back
6. Push // Pull — can bring back
7. Vivien on the Hunt — can bring back
8. Virtus's Maneuver — can bring back
9. Dredger's Insight — can bring back
10. Bramble Familiar // Fetch Quest — can bring back

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

a nontoken creature dies — 2,769 cards in the game can cause this (Professor Dellian Fel is one).

When a creature dies thanks to Professor Dellian Fel:

1. Vraska, the Silencer — brings a card back
2. High-Society Hunter — draws you 1 card
3. Overseer of the Damned — makes a token
4. Shelob, Dread Weaver — hits a graveyard
5. Ghoulish Procession — makes a token
6. Ogre Slumlord — makes a token
7. Minotaur, Roxxon CEO — makes a token
8. Magus of the Bridge — exiles itself
9. Koh, the Face Stealer — exiles it

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

a creature dies — 2,830 cards in the game can cause this (Professor Dellian Fel is one).

When a creature dies thanks to Professor Dellian Fel:

1. Journey to Eternity // Atzal, Cave of Eternity — brings a card back
2. Avatar Destiny — mills a card
3. Blood Spatter Analysis — mills a card

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

a card is drawn — 3,815 cards in the game can cause this (Professor Dellian Fel is one).

1. Toothy, Imaginary Friend — When Professor Dellian Fel makes a player draw a card, Toothy, Imaginary Friend puts a +1/+1 counter on itself

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