Crystal Skull, Isu Spyglass

a land is played — 97 cards in the game can cause this (Crystal Skull is one).

When a land plays a land thanks to Crystal Skull, Isu Spyglass:

1. Flubs, the Fool — draws you 1 card
2. Infernal Sovereign — draws you 1 card
3. Shadow of the Goblin — deals 1 damage
4. The Endstone — draws you 1 card
5. Horn of Greed — makes a player draw 1 card
6. Pangosaur — triggers
7. City of Traitors — sacrifices itself

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

a spell is cast — 155 cards in the game can cause this (Crystal Skull is one).

1. Shanid, Sleepers' Scourge — When Crystal Skull, Isu Spyglass is cast, Shanid, Sleepers' Scourge draws you 1 card
2. Glaring Fleshraker — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Glaring Fleshraker makes a token
3. The Kingpin of Crime — When a spell is cast thanks to Crystal Skull, Isu Spyglass, The Kingpin of Crime drains each opponent
4. Leader's Talent — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Leader's Talent puts a counter on a creature
5. Elena, Turk Recruit — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Elena, Turk Recruit puts a +1/+1 counter on itself
6. Nita, Forum Conciliator — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Nita, Forum Conciliator puts a counter on a creature
7. Treasury Thrull — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Treasury Thrull drains each opponent
8. Moira and Teshar — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Moira and Teshar brings a card back
9. Teshar, Ancestor's Apostle — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Teshar, Ancestor's Apostle brings a card back
10. Norin the Wary — When a spell is cast thanks to Crystal Skull, Isu Spyglass, Norin the Wary flickers itself

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

an artifact is cast — 3,683 cards in the game can cause this (Crystal Skull is one).

When a spell is cast thanks to Crystal Skull, Isu Spyglass:

1. Mendicant Core, Guidelight — copies a spell
2. Sai, Master Thopterist — makes a token
3. Ravenous Robots — makes a token
4. Pinnacle Emissary — makes a token
5. Mirrodin Besieged — makes a token
6. Poetic Ingenuity — makes a token
7. Digsite Engineer — makes a token
8. Myrsmith — makes a token
9. Riddlesmith — draws you 1 card
10. Dr. Madison Li — puts a counter on a permanent you control

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

a nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Crystal Skull is one).

When Crystal Skull, Isu Spyglass enters:

1. Ultron, Artificial Malevolence — makes a token
2. The Prydwen, Steel Flagship — makes a token
3. Conquest Mission — puts a quest counter on itself
4. Surge Conductor — proliferates
5. Replication Specialist — makes a token
6. Weapons Manufacturing — makes a token
7. Mirrorworks — makes a token

an artifact enters the battlefield — 4,643 cards in the game can cause this (Crystal Skull is one).

When Crystal Skull, Isu Spyglass enters:

1. Transplant Theorist — draws you 1 card
2. Elvish Archivist — puts 2 +1/+1 counters on itself
3. Golbez, Crystal Collector — surveils
4. Sludge Strider — makes a player lose 1 life
5. Underhanded Designs — makes each opponent lose 1 life
6. Mechan Assembler — makes a token
7. Glassdust Hulk — gets +1/+1
8. Rook Turret — draws you 1 card
9. Hedron Detonator — deals 1 damage
10. Pactdoll Terror — makes each opponent lose 1 life

58 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 (Crystal Skull is one).

When Crystal Skull, Isu Spyglass enters:

1. HYDRA Assault Robot — deals 1 damage
2. Era of Innovation — puts a counter on a permanent you control
3. Nature's Wrath — makes a player sacrifice an Island or permanent

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

anything is cast — 31,128 cards in the game can cause this (Crystal Skull is one).

When a spell is cast thanks to Crystal Skull, Isu Spyglass:

1. Sokka, Bold Boomeranger — puts a +1/+1 counter on itself
2. Captain Jean-Luc Picard — makes a token
3. Windrider Wizard — draws you 1 card
4. Relic Amulet — puts a charge counter on itself
5. Rockslide Sorcerer — deals 1 damage
6. Umara Wizard // Umara Skyfalls — grants flying
7. Alania, Divergent Storm — makes an opponent draw 1 card
8. Umara Mystic — gets +2/+0
9. Saheeli, Radiant Creator — puts a counter on a permanent you control
10. Master of Winds — triggers

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