M:tG card similarity search
X4 · Artifact
As Riptide Replicator enters the battlefield, choose a color and a creature type. Riptide Replicator enters the battlefield with X charge counters on it. {4}, {T}: Create an X/X creature token of the chosen color and type, where X is the number of charge counters on Riptide Replicator.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Door of Destinies | 4 | Artifact | As Door of Destinies enters the battlefield, choose a creature type. Whenever you cast a spell of the chosen type, put a charge counter on Door of Destinies. Creatures you control of the chosen type get +1/+1 for each charge counter on Door of Destinies. | 
| Volrath's Laboratory | 5 | Artifact | As Volrath's Laboratory enters the battlefield, choose a color and a creature type. {5}, {T}: Create a 2/2 creature token of the chosen color and type. | 
| Astral Cornucopia | XXX | Artifact | Astral Cornucopia enters the battlefield with X charge counters on it. {T}: Choose a color. Add one mana of that color for each charge counter on Astral Cornucopia. | 
| Chromatic Armor | 1WU | Enchantment — Aura | Enchant creature As Chromatic Armor enters the battlefield, choose a color. Chromatic Armor enters the battlefield with a sleight counter on it. Prevent all damage that would be dealt to enchanted creature by sources of the last chosen color. {X}: Put a sleight counter on Chromatic Armor and choose a color. X is the number of sleight counters on Chromatic Armor. | 
| Empowered Autogenerator | 4 | Artifact | Empowered Autogenerator enters the battlefield tapped. {T}: Put a charge counter on Empowered Autogenerator. Add X mana of any one color, where X is the number of charge counters on Empowered Autogenerator. | 
| Cover of Darkness | 1B | Enchantment | As Cover of Darkness enters the battlefield, choose a creature type. Creatures of the chosen type have fear. (They can't be blocked except by artifact creatures and/or black creatures.) | 
| Steely Resolve | 1G | Enchantment | As Steely Resolve enters the battlefield, choose a creature type. Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.) | 
| Alloy Golem | 6 | Artifact Creature — Golem | As Alloy Golem enters the battlefield, choose a color. Alloy Golem is the chosen color. (It's still an artifact.) 4/4 | 
| Orochi Hatchery | XX | Artifact | Orochi Hatchery enters the battlefield with X charge counters on it. {5}, {T}: Create a 1/1 green Snake creature token for each charge counter on Orochi Hatchery. | 
| Bloodline Pretender | 3 | Artifact Creature — Shapeshifter | Changeling (This card is every creature type.) As Bloodline Pretender enters the battlefield, choose a creature type. Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender. 2/2 |