Grond, the Gatebreaker

an artifact is cast — 2,470 cards in Grond's colors can cause this (Grond is one).

When Grond, the Gatebreaker is cast:

1. Patchwork Automaton — puts a +1/+1 counter on itself
2. Golem Foundry — puts a charge counter on itself
3. Painsmith — gives +2/+0
4. Golem's Heart — gains you 1 life
5. Urza's Chalice — gains you 1 life
6. Solar Array — grants sunburst
7. Defiler of Flesh — gives +1/+1
8. The Fantasticar — turns something into a creature
9. Biotransference — makes you lose life
10. Blood Funnel — sacrifices a creature

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

a nontoken artifact enters the battlefield — 2,473 cards in Grond's colors can cause this (Grond is one).

When Grond, the Gatebreaker enters:

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

an artifact enters the battlefield — 2,613 cards in Grond's colors can cause this (Grond is one).

When Grond, the Gatebreaker enters:

1. Underhanded Designs — makes each opponent lose 1 life
2. Pactdoll Terror — makes each opponent lose 1 life
3. Arcbound Crusher — puts a +1/+1 counter on itself
4. Arcbound Condor — shrinks a creature by -1/-1
5. Glaze Fiend — gets +2/+2
6. Battered Golem — untaps itself
7. Skorpekh Destroyer — grants first strike
8. Grinding Station — untaps itself
9. Ovalchase Daredevil — returns itself from the graveyard
10. Vermiculos — gets +4/+4

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

anything that is not a token enters the battlefield — 6,294 cards in Grond's colors can cause this (Grond is one).

1. Canoptek Spyder — When Grond, the Gatebreaker enters, Canoptek Spyder draws you 1 card