M:tG card similarity search
1GG · Enchantment
At the beginning of your upkeep, sacrifice Thelon's Chant unless you pay {G}. Whenever a player puts a Swamp onto the battlefield, Thelon's Chant deals 3 damage to that player unless the player puts a -1/-1 counter on a creature they control.
| Name | Mana | Type | Text |
|---|---|---|---|
| Extravagant Spirit | 3U | Creature — Spirit | Flying At the beginning of your upkeep, sacrifice Extravagant Spirit unless you pay {1} for each card in your hand. 4/4 |
| Pendrell Mists | 3U | Enchantment | All creatures have "At the beginning of your upkeep, sacrifice this creature unless you pay {1}." |
| Magmatic Force | 5RRR | Creature — Elemental | At the beginning of each upkeep, Magmatic Force deals 3 damage to any target. 7/7 |
| Elder Spawn | 4UUU | Creature — Spawn | At the beginning of your upkeep, unless you sacrifice an Island, sacrifice Elder Spawn and it deals 6 damage to you. Elder Spawn can't be blocked by red creatures. 6/6 |
| Oath of Mages | 1R | Enchantment | At the beginning of each player's upkeep, that player chooses target player who has more life than they do and is their opponent. The first player may have Oath of Mages deal 1 damage to the second player. |
| Smokestack | 4 | Artifact | At the beginning of your upkeep, you may put a soot counter on Smokestack. At the beginning of each player's upkeep, that player sacrifices a permanent for each soot counter on Smokestack. |
| Sleeper Agent | B | Creature — Phyrexian Minion | When Sleeper Agent enters the battlefield, target opponent gains control of it. At the beginning of your upkeep, Sleeper Agent deals 2 damage to you. 3/3 |
| Ley Line | 3G | Enchantment | At the beginning of each player's upkeep, that player may put a +1/+1 counter on target creature of their choice. |
| Heavyweight Demolisher | 7 | Artifact Creature — Construct | Menace At the beginning of your upkeep, tap Heavyweight Demolisher unless you pay {3}. Unearth {6}{R}{R} ({6}{R}{R}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.) 8/6 |
| Tectonic Hazard | R | Sorcery | Tectonic Hazard deals 1 damage to each opponent and each creature they control. |