Ragnar

a Cleric enters the battlefield — 722 cards in the game can cause this (Ragnar is one).

1. Cleric of Life's Bond — When Ragnar enters, Cleric of Life's Bond gains you 1 life

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

a Human enters the battlefield — 4,639 cards in the game can cause this (Ragnar is one).

1. General Kudro of Drannith — When Ragnar enters, General Kudro of Drannith hits a graveyard
2. Heronblade Elite — When Ragnar enters, Heronblade Elite puts a +1/+1 counter on itself
3. Kyler, Sigardian Emissary — When Ragnar enters, Kyler, Sigardian Emissary puts a +1/+1 counter on itself
4. Thalia's Lieutenant — When Ragnar enters, Thalia's Lieutenant puts a +1/+1 counter on itself
5. Champion of the Parish — When Ragnar enters, Champion of the Parish puts a +1/+1 counter on itself
6. Captain of the Mists — When Ragnar enters, Captain of the Mists untaps itself
7. Erkenbrand, Lord of Westfold — When Ragnar enters, Erkenbrand, Lord of Westfold gives +1/+0
8. Beregond of the Guard — When Ragnar enters, Beregond of the Guard gives +1/+1
9. Théoden, King of Rohan — When Ragnar enters, Théoden, King of Rohan grants double strike
10. Lossarnach Captain — When Ragnar enters, Lossarnach Captain taps a creature an opponent controls

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 (Ragnar is one).

1. Far Fortune, End Boss — When Ragnar attacks, Far Fortune, End Boss deals 1 damage
2. Temmet, Naktamun's Will — When Ragnar attacks, Temmet, Naktamun's Will draws you 1 card
3. Grim Javelineer — When Ragnar attacks, Grim Javelineer gives +1/+0
4. Invisible Woman — When Ragnar attacks, Invisible Woman triggers
5. Caesar, Legion's Emperor — When Ragnar attacks, Caesar, Legion's Emperor sacrifices a creature
6. Guide of Souls — When Ragnar attacks, Guide of Souls triggers
7. Campsite Cuisine — When Ragnar attacks, Campsite Cuisine sacrifices a Food
8. Gossip's Talent — When Ragnar attacks, Gossip's Talent triggers
9. Banon, the Returners' Leader — When Ragnar attacks, Banon, the Returners' Leader draws and discards
10. Toph, Earthbending Master — When Ragnar attacks, Toph, Earthbending Master puts a counter on a permanent

112 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 (Ragnar is one).

1. Adaptive Omnitool — When Ragnar attacks, Adaptive Omnitool searches a library
2. Anthem of Rakdos — When Ragnar attacks, Anthem of Rakdos gives +2/+0
3. Kindred Discovery — When Ragnar attacks, Kindred Discovery draws you 1 card
4. Invasion of New Capenna // Holy Frazzle-Cannon — When Ragnar attacks, Invasion of New Capenna // Holy Frazzle-Cannon puts counters on a permanent
5. Chorale of the Void — When Ragnar attacks, Chorale of the Void brings a card back
6. Anim Pakal, Thousandth Moon — When Ragnar attacks, Anim Pakal, Thousandth Moon puts a +1/+1 counter on itself
7. Saw — When Ragnar attacks, Saw sacrifices a creature
8. Gisa's Favorite Shovel — When Ragnar attacks, Gisa's Favorite Shovel makes an opponent sacrifice a creature
9. Ultima Weapon — When Ragnar attacks, Ultima Weapon kills a creature an opponent controls
10. Total War — When Ragnar attacks, Total War kills a creature

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

a creature blocks — 17,934 cards in the game can cause this (Ragnar is one).

1. Mage Hunters' Onslaught — When Ragnar blocks, Mage Hunters' Onslaught makes a player lose 1 life
2. Carnage Gladiator — When Ragnar blocks, Carnage Gladiator makes a player lose 1 life
3. Barrow-Blade — When Ragnar blocks, Barrow-Blade strips abilities
4. Heat of Battle — When Ragnar blocks, Heat of Battle deals 1 damage
5. Battle Strain — When Ragnar blocks, Battle Strain deals 1 damage
6. Favor of the Woods — When Ragnar blocks, Favor of the Woods gains you 3 life
7. Tide of War — When Ragnar blocks, Tide of War sacrifices a creature
8. Dead-Iron Sledge — When Ragnar blocks, Dead-Iron Sledge kills a creature
9. Dwindle — When Ragnar blocks, Dwindle kills a creature
10. Shield of the Righteous — When Ragnar blocks, Shield of the Righteous triggers

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

a nontoken creature attacks — 17,934 cards in the game can cause this (Ragnar is one).

1. Mardu Ascendancy — When Ragnar attacks, Mardu Ascendancy makes a token
2. Basri Ket — When Ragnar attacks, Basri Ket makes a token
3. Militia's Pride — When Ragnar attacks, Militia's Pride makes a token

a creature deals combat damage — 17,934 cards in the game can cause this (Ragnar is one).

When Ragnar deals combat damage:

1. Locutus of Borg — makes a token
2. Antagonist Incorporator — makes a token
3. Hive Mind Coprocessor — makes you lose life

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

a creature is cast — 18,010 cards in the game can cause this (Ragnar is one).

1. Primeval Bounty — When Ragnar is cast, Primeval Bounty makes a token
2. Bloodbond March — When Ragnar is cast, Bloodbond March brings a card back
3. Dancing from Dark to Dawn — When Ragnar is cast, Dancing from Dark to Dawn puts that spell's mana value counters on a creature
4. Endrek Sahr, Master Breeder — When Ragnar is cast, Endrek Sahr, Master Breeder makes that spell's mana value tokens

87 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 (Ragnar is one).

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

309 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 (Ragnar is one).

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

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