M:tG card similarity search
1 · Legendary Artifact
Whenever you untap one or more permanents during your untap step, put that many time counters on The Millennium Calendar. {2}, {T}: Double the number of time counters on The Millennium Calendar. When there are 1,000 or more time counters on The Millennium Calendar, sacrifice it and each opponent loses 1,000 life.
| Name | Mana | Type | Text |
|---|---|---|---|
| Worship | 3W | Enchantment | If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead. |
| Volrath, the Shapestealer | 2BGU | Legendary Creature — Phyrexian Shapeshifter | At the beginning of combat on your turn, put a -1/-1 counter on up to one target creature. {1}: Until your next turn, Volrath, the Shapestealer becomes a copy of target creature with a counter on it, except it's 7/5 and it has this ability. 7/5 |
| Clock of Omens | 4 | Artifact | Tap two untapped artifacts you control: Untap target artifact. |
| Green Slime | 2G | Creature — Ooze | Flash When Green Slime enters the battlefield, counter target activated or triggered ability from an artifact or enchantment source. If a permanent's ability is countered this way, destroy that permanent. Foretell {G} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.) 2/2 |
| Mwonvuli Ooze | G | Creature — Ooze | Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay {2} for each age counter on it.) Mwonvuli Ooze's power and toughness are each equal to 1 plus twice the number of age counters on it. 1+*/1+* |
| Phyrexian Obliterator | BBBB | Creature — Phyrexian Horror | Trample Whenever a source deals damage to Phyrexian Obliterator, that source's controller sacrifices that many permanents. 5/5 |
| Door to Nothingness | 5 | Artifact | Door to Nothingness enters the battlefield tapped. {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, {T}, Sacrifice Door to Nothingness: Target player loses the game. |
| Tidal Control | 1UU | Enchantment | Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Pay 2 life or {2}: Counter target red or green spell. Any player may activate this ability. |
| Glint-Sleeve Siphoner | 1B | Creature — Human Rogue | Menace Whenever Glint-Sleeve Siphoner enters the battlefield or attacks, you get {E} (an energy counter). At the beginning of your upkeep, you may pay {E}{E}. If you do, you draw a card and you lose 1 life. 2/1 |
| Withercrown | 1B | Enchantment — Aura | Enchant creature Enchanted creature has base power 0 and has "At the beginning of your upkeep, you lose 1 life unless you sacrifice this creature." |