Brokkos, Apex of Forever

a Nightmare enters the battlefield — 109 cards in Brokkos's colors can cause this (Brokkos is one).

1. Umbris, Fear Manifest — When Brokkos, Apex of Forever enters, Umbris, Fear Manifest exiles a card from an opponent's library

a Beast creature is cast — 395 cards in Brokkos's colors can cause this (Brokkos is one).

1. Tawnos, the Toymaker — When Brokkos, Apex of Forever is cast, Tawnos, the Toymaker copies a spell

a Beast enters the battlefield — 434 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever enters:

1. Totem Speaker — gains you 3 life
2. Wirewood Savage — draws you 1 card
3. Woodland Liege — draws you 1 card

an Elemental enters the battlefield — 353 cards in Brokkos's colors can cause this (Brokkos is one).

1. Risen Reef — When Brokkos, Apex of Forever enters, Risen Reef puts a land onto the battlefield

a creature leaves a graveyard — 905 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever leaves a graveyard:

1. Grim Reaper's Scythe — makes a token
2. Syr Konrad, the Grim — deals 1 damage
3. Along the Crooked Way — puts a counter on a Goblin or Army
4. Skeleton Crew — makes a token
5. Desecrated Tomb — makes a token
6. Chalk Outline — makes a token
7. Insidious Roots — makes a token
8. Undead Hand Ninja — makes each opponent lose 1 life
9. Rot Farm Mortipede — gets +1/+0
10. Soul Enervation — makes each opponent lose 1 life

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

anything leaves a graveyard — 1,660 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever leaves a graveyard:

1. Blastoneuron — makes each opponent lose 1 life
2. Defiled Crypt // Cadaver Lab — makes a token
3. Teval, the Balanced Scale — makes a token
4. Hologram Stalker — makes a token
5. Tormod, the Desecrator — makes a token
6. Amzu, Swarm's Hunger — makes a token
7. Vash, Freelance Archaeologist — draws you 1 card
8. Willow Geist — puts a +1/+1 counter on itself
9. Fang, Fearless l'Cie — draws you 1 card
10. Teval's Judgment — triggers

a creature attacks — 9,732 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever attacks:

1. Adaptive Omnitool — searches a library
2. Kindred Discovery — draws you 1 card
3. Chorale of the Void — brings a card back
4. The Earth King — searches a library
5. Screaming Swarm — mills a card
6. Imperious Mindbreaker — mills a card
7. Staff of Titania — makes a token
8. Saw — sacrifices a creature
9. Gisa's Favorite Shovel — makes an opponent sacrifice a creature
10. Ultima Weapon — kills a creature an opponent controls

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

anything attacks — 9,732 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever attacks:

1. Grim Javelineer — gives +1/+0
2. ED-E, Lonesome Eyebot — puts a quest counter on itself
3. Fire Navy Trebuchet — makes a token
4. Madame Web, Clairvoyant — mills a card
5. Bonny Pall, Clearcutter — draws you 1 card
6. Dimir Strandcatcher — surveils
7. Campsite Cuisine — sacrifices a Food
8. Gossip's Talent — triggers
9. Toph, Earthbending Master — puts a counter on a permanent
10. Krydle of Baldur's Gate — triggers

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

a creature blocks — 9,732 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever blocks:

1. Mage Hunters' Onslaught — makes a player lose 1 life
2. Barrow-Blade — strips abilities
3. Favor of the Woods — gains you 3 life
4. Gift of the Woods — gives +0/+3
5. Noxious Assault — puts a counter on a permanent
6. Ferocity — puts a counter on a permanent
7. Mammoth Harness — grants first strike
8. Dead-Iron Sledge — kills a creature
9. Dwindle — kills a creature

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

a creature deals combat damage — 9,732 cards in Brokkos's colors can cause this (Brokkos is one).

1. Hive Mind Coprocessor — When Brokkos, Apex of Forever deals combat damage, Hive Mind Coprocessor makes you lose life

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

a creature is cast — 9,778 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever is cast:

1. Primeval Bounty — makes a token
2. Bloodbond March — brings a card back

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

a creature enters the battlefield — 10,785 cards in Brokkos's colors can cause this (Brokkos is one).

When Brokkos, Apex of Forever enters:

1. Ray Fillet, Wave Warrior — puts a counter on itself
2. Legolas Greenleaf — puts a counter on a permanent

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