Steelfin Whale 
Creature — Whale
$0.16 #21243 0.05 5.3 years
Affinity for artifacts (This spell costs 
less to cast for each artifact you control.)
less to cast for each artifact you control.)Whenever an artifact you control enters, untap this creature.
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Cards similar to Steelfin Whale expected a card that isn't here?
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Battered Golem84%
$0.38↑#8904↑0.33↑22.4 years↑
"Whenever an artifact enters, you may untap this creature."
Grinding Station83%
$11.14↑#2172↑0.83↑22.4 years↑
"Whenever an artifact enters, you may untap this artifact."
Towashi Songshaper80%
$0.11↓#26286↓0.124.7 years
"Whenever another artifact you control enters, this creature gets +1/+0 until end of turn."
Perimeter Patrol80%
$0.05↓#30820↓0.003.9 years↓
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Phalanx Vanguard80%
$0.07↓#27483↓0.003.9 years↓
"Whenever an artifact you control enters, this creature gets +1/+0 until end of turn."
Glaze Fiend80%
$0.19↑#247040.0018.0 years↑
"Whenever another artifact you control enters, this creature gets +2/+2 until end of turn."
Mandible Justiciar78%
$0.19↑#170240.19↑3.7 years↓
"Whenever another artifact you control enters, this creature gets +1/+1 until end of turn."
Machinesmith Automaton76%
$0.15↓#16390↑0.150.3 years↓
"Whenever another artifact you control enters, put a +1/+1 counter on this creature."
Donatello, Way with Machines75%
$0.20↑#13242↑0.20↑0.6 years↓
"Whenever an artifact you control enters, put a +1/+1 counter on this card."
Oreplate Pangolin74%
$0.15↓#16595↑0.001.2 years↓
"Whenever another artifact you control enters, you may pay . If you do, put a +1/+1 counter on this creature."
. If you do, put a +1/+1 counter on this creature."
Panther Robot74%
$0.73↑#10213↑0.29↑0.3 years↓
"Affinity for artifacts"
Mechan Assembler74%
$0.26↑#10026↑0.001.2 years↓
"Whenever another artifact you control enters, create a 2/2 colorless Robot artifact creature token. This ability triggers only once each turn."
Karstoderm74%
$0.08↓#32143↓0.0022.7 years↑
"Whenever an artifact enters, remove a +1/+1 counter from this creature."
Somber Hoverguard74%
$0.04↓#27146↓0.53↑23.0 years↑
"Affinity for artifacts"
Qumulox74%
$0.08↓#248770.0022.4 years↑
"Affinity for artifacts"
Utrom Monitor74%
$7.50↑#26053↓0.42↑0.6 years↓
"Affinity for artifacts"
Memory Guardian74%
$0.29↑#13386↑0.001.7 years↓
"Affinity for artifacts"
Midnight Guard74%
$0.09↓#14038↑0.1414.7 years↑
"Whenever another creature enters, untap this creature."
Thoughtcast74%
$0.80↑#929↑0.22↑23.0 years↑
"Affinity for artifacts"
Vermiculos73%
$0.33↑#29534↓0.0023.0 years↑
"Whenever an artifact enters, this creature gets +4/+4 until end of turn."