M:tG card similarity search
3UU · Enchantment
Whenever a creature or land becomes tapped, put an hourglass counter on it. Each permanent with an hourglass counter on it doesn't untap during its controller's untap step. At the beginning of each player's upkeep, remove all hourglass counters from permanents that player controls.
| Name | Mana | Type | Text |
|---|---|---|---|
| Private Research | U | Enchantment — Aura | Enchant creature At the beginning of your upkeep, you may put a page counter on Private Research. When enchanted creature dies, draw a card for each page counter on Private Research. |
| Festering Wound | 1B | Enchantment — Aura | Enchant creature At the beginning of your upkeep, you may put an infection counter on Festering Wound. At the beginning of the upkeep of enchanted creature's controller, Festering Wound deals X damage to that player, where X is the number of infection counters on Festering Wound. |
| Darksteel Reactor | 4 | Artifact | Indestructible (Effects that say "destroy" don't destroy this artifact.) At the beginning of your upkeep, you may put a charge counter on Darksteel Reactor. When Darksteel Reactor has twenty or more charge counters on it, you win the game. |
| Asphyxiate | 1BB | Sorcery | Destroy target untapped creature. |
| Tetzimoc, Primal Death | 4BB | Legendary Creature — Elder Dinosaur | Deathtouch {B}, Reveal Tetzimoc, Primal Death from your hand: Put a prey counter on target creature. Activate only during your turn. When Tetzimoc enters the battlefield, destroy each creature your opponents control with a prey counter on it. 6/6 |
| Mazirek, Kraul Death Priest | 3BG | Legendary Creature — Insect Shaman | Flying Whenever a player sacrifices another permanent, put a +1/+1 counter on each creature you control. 2/2 |
| Tendril of the Mycotyrant | 1G | Creature — Fungus Wizard | {5}{G}{G}: Put seven +1/+1 counters on target noncreature land you control. It becomes a 0/0 Fungus creature with haste. It's still a land. 2/2 |
| Llanowar Druid | 1G | Creature — Elf Druid | {T}, Sacrifice Llanowar Druid: Untap all Forests. 1/2 |
| Hazoret's Undying Fury | 4RR | Sorcery | Shuffle your library, then exile the top four cards. You may cast any number of spells with mana value 5 or less from among them without paying their mana costs. Lands you control don't untap during your next untap step. |
| Dominus of Fealty | U/RU/RU/RU/RU/R | Creature — Spirit Avatar | Flying At the beginning of your upkeep, you may gain control of target permanent until end of turn. If you do, untap it and it gains haste until end of turn. 4/4 |