M:tG card similarity search
2WW · Enchantment
At the beginning of your upkeep, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Teferi's Realm | 1UU | World Enchantment | At the beginning of each player's upkeep, that player chooses artifact, creature, land, or non-Aura enchantment. All nontoken permanents of that type phase out. (While they're phased out, they're treated as though they don't exist. Each one phases in before its controller untaps during their next untap step.) |
| Rust Elemental | 4 | Artifact Creature — Elemental | Flying At the beginning of your upkeep, sacrifice an artifact other than Rust Elemental. If you can't, tap Rust Elemental and you lose 4 life. 4/4 |
| Precognition | 4U | Enchantment | At the beginning of your upkeep, you may look at the top card of target opponent's library. If you do, you may put that card on the bottom of that player's library. |
| Tawnos Endures | W | Instant | Exile target creature. It gains "At the beginning of your upkeep, if this card is exiled, it perpetually gets +1/+1, then you may put it onto the battlefield." |
| Arena Athlete | 1R | Creature — Human | Heroic — Whenever you cast a spell that targets Arena Athlete, target creature an opponent controls can't block this turn. 2/1 |
| Primal Order | 2GG | Enchantment | At the beginning of each player's upkeep, Primal Order deals damage to that player equal to the number of nonbasic lands they control. |
| Kookus | 3RR | Creature — Djinn | Trample At the beginning of your upkeep, if you don't control a creature named Keeper of Kookus, Kookus deals 3 damage to you and attacks this turn if able. {R}: Kookus gets +1/+0 until end of turn. 3/5 |
| Boiling Earth | 1R | Sorcery | Boiling Earth deals 1 damage to each creature your opponents control. Awaken 4—{6}{R} (If you cast this spell for {6}{R}, also put four +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.) |
| Dumb Ass | 2R | Creature — Donkey Barbarian | At the beginning of your upkeep, flip a coin. If you lose the flip, target opponent chooses whether Dumb Ass attacks this turn. 3.5/2 |
| Mind Harness | U | Enchantment — Aura | Enchant red or green creature Cumulative upkeep {1} (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.) You control enchanted creature. |