M:tG card similarity search
WU · Legendary Artifact
The Grand Calcutron can be your commander. When The Grand Calcutron enters the battlefield, each player's hand becomes a program (an ordered row of revealed cards). Players can only play the first card of their program. If a card would be put into a player's hand from anywhere, that player reveals it and places it anywhere within their program instead. At the beginning of each player's end step, if that player's program has fewer than five cards, they draw cards equal to the difference.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mindmelter | 1UB | Creature — Eldrazi Drone | Devoid (This card has no color.) Mindmelter can't be blocked. {3}{C}: Target opponent exiles a card from their hand. Activate only as a sorcery. ({C} represents colorless mana.) 2/2 |
| Venarian Glimmer | XU | Instant | Target player reveals their hand. You choose a nonland card with mana value X or less from it. That player discards that card. |
| Discourtesy Clerk | 3B | Creature — Vampire Employee | When Discourtesy Clerk enters the battlefield, open an Attraction. (Put the top card of your Attraction deck onto the battlefield.) At the beginning of your end step, if you control three or more Attractions, you draw a card and you lose 1 life. 3/2 |
| Fraying Omnipotence | 3BB | Sorcery | Each player loses half their life, then discards half the cards in their hand, then sacrifices half the creatures they control. Round up each time. |
| Penregon Besieged | 1B | Enchantment | At the beginning of your end step, choose a creature with the least toughness among creatures your opponents control. It perpetually gets -1/-1. When your opponents control no creatures, sacrifice Penregon Besieged. |
| Desecration Demon | 2BB | Creature — Demon | Flying At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it. 6/6 |
| Darigaaz, the Igniter | 3BRG | Legendary Creature — Dragon | Flying Whenever Darigaaz, the Igniter deals combat damage to a player, you may pay {2}{R}. If you do, choose a color, then that player reveals their hand and Darigaaz deals damage to the player equal to the number of cards of that color revealed this way. 6/6 |
| Passageway Seer | 3B | Creature — Tiefling Warlock | Lifelink When Passageway Seer enters the battlefield, you take the initiative. At the beginning of your end step, if you have the initiative, put a +1/+1 counter on Passageway Seer. 2/2 |
| Mangara's Tome | 5 | Artifact | When Mangara's Tome enters the battlefield, search your library for five cards, exile them in a face-down pile, and shuffle that pile. Then shuffle your library. {2}: The next time you would draw a card this turn, instead put the top card of the exiled pile into its owner's hand. |
| Nascent Metamorph | 1U | Creature — Shapeshifter | Whenever Nascent Metamorph attacks or blocks, target opponent reveals cards from the top of their library until they reveal a creature card. Nascent Metamorph becomes a copy of that card until end of turn. Then that player puts all cards revealed this way on the bottom of their library in a random order. 1/1 |