Wonder

anything attacks — 17,785 cards in the game can cause this (Wonder is one).

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

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

a creature attacks — 17,785 cards in the game can cause this (Wonder is one).

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

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

a nontoken creature attacks — 17,785 cards in the game can cause this (Wonder is one).

1. Mardu Ascendancy — When Wonder attacks, Mardu Ascendancy makes a token
2. Basri Ket — When Wonder attacks, Basri Ket makes that many tokens
3. Militia's Pride — When Wonder attacks, Militia's Pride makes a token

a creature it grants abilities to — 19,235 cards in the game can cause this (Wonder is one).

1. Pollywog Prodigy — Wonder gives Pollywog Prodigy flying
2. Soul-Scar Mage — Wonder gives Soul-Scar Mage flying
3. Tomik, Izzet Sparkmage — Wonder gives Tomik, Izzet Sparkmage flying
4. Havengul Lich — Wonder gives Havengul Lich flying
5. Saheeli, Radiant Creator — Wonder gives Saheeli, Radiant Creator flying
6. Sokka, Bold Boomeranger — Wonder gives Sokka, Bold Boomeranger flying
7. Rockslide Sorcerer — Wonder gives Rockslide Sorcerer flying
8. Umara Wizard // Umara Skyfalls — Wonder gives Umara Wizard // Umara Skyfalls flying
9. Alania, Divergent Storm — Wonder gives Alania, Divergent Storm flying
10. HYDRA Assault Robot — Wonder gives HYDRA Assault Robot flying

19,224 other cards care about it too. These are the ones with the most connections.

a creature enters the battlefield — 19,635 cards in the game can cause this (Wonder is one).

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

3,004 other cards care about it too. These are the ones with the most connections.

anything enters the battlefield — 26,290 cards in the game can cause this (Wonder is one).

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

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