Craterclaw Colossus 



Artifact Creature — Beast Construct
Haste
When this creature enters, creatures you control gain trample and get +X/+0 until end of turn, where X is the number of artifacts you control.
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Craterhoof Behemoth 89%
$18.83#324
"When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control."
+1 more matching line
Earthshaker Giant 83%
$0.82#13899
"When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn."
Rumbleweed 83%
$3.44#5936
"When this creature enters, other creatures you control get +3/+3 and gain trample until end of turn."