Dawnsire, Sunstar Dreadnought

anything deals noncombat damage — 186 cards in Dawnsire's colors can cause this (Dawnsire is one).

1. Talon of Pain — When Dawnsire, Sunstar Dreadnought deals noncombat damage, Talon of Pain puts a charge counter on itself

an artifact is cast — 2,238 cards in Dawnsire's colors can cause this (Dawnsire is one).

When Dawnsire, Sunstar Dreadnought is cast:

1. Patchwork Automaton — puts a +1/+1 counter on itself
2. Golem Foundry — puts a charge counter on itself
3. Golem's Heart — gains you 1 life
4. Urza's Chalice — gains you 1 life
5. Solar Array — grants sunburst
6. The Fantasticar — turns something into a creature
7. Machine Man, Model X-51 — puts a +1/+1 counter on itself
8. Levitating Statue — puts a +1/+1 counter on itself
9. Scroll of the Masters — puts a lore counter on itself
10. The Vision — triggers

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

a nontoken artifact enters the battlefield — 2,243 cards in Dawnsire's colors can cause this (Dawnsire is one).

When Dawnsire, Sunstar Dreadnought enters:

1. Ultron, Artificial Malevolence — makes a token
2. Surge Conductor — proliferates
3. Mirrorworks — makes a token

an artifact it grants abilities to — 2,262 cards in Dawnsire's colors can cause this.

1. Darksteel Forge — Darksteel Forge gives Dawnsire, Sunstar Dreadnought indestructible

2,261 other cards cause it too. These are the ones with the most connections.

an artifact it applies untap to — 2,262 cards in Dawnsire's colors can cause this.

1. Unwinding Clock — Unwinding Clock gives Dawnsire, Sunstar Dreadnought an extra untap

2,261 other cards cause it too. These are the ones with the most connections.

an artifact enters the battlefield — 2,261 cards in Dawnsire's colors can cause this (Dawnsire is one).

When Dawnsire, Sunstar Dreadnought enters:

1. Arcbound Crusher — puts a +1/+1 counter on itself
2. Battered Golem — untaps itself
3. Grinding Station — untaps itself
4. Serum Tank — puts a charge counter on itself
5. Gonti's Aether Heart — puts 2 counters on a permanent
6. Tezzeret, Cruel Captain — puts a loyalty counter on itself

a creature is dealt damage — 799 cards in Dawnsire's colors can cause this (Dawnsire is one).

1. Hot Soup — When a creature is dealt damage thanks to Dawnsire, Sunstar Dreadnought, Hot Soup kills a creature