M:tG card similarity search
1 · Artifact
At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.
| Name | Mana | Type | Text |
|---|---|---|---|
| Mana Crypt | 0 | Artifact | At the beginning of your upkeep, flip a coin. If you lose the flip, Mana Crypt deals 3 damage to you. {T}: Add {C}{C}. |
| Narcolepsy | 1U | Enchantment — Aura | Enchant creature At the beginning of each upkeep, if enchanted creature is untapped, tap it. |
| Gemstone Caverns | Legendary Land | If Gemstone Caverns is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color. | |
| Omen Hawker | U | Creature — Cephalid Advisor | {T}: Add {C}{U}. Spend this mana only to activate abilities. 1/1 |
| Rashmi, Eternities Crafter | 2GU | Legendary Creature — Elf Druid | Whenever you cast your first spell each turn, reveal the top card of your library. You may cast it without paying its mana cost if it's a spell with lesser mana value. If you don't cast it, put it into your hand. 2/3 |
| Harbinger of Night | 2BB | Creature — Spirit | At the beginning of your upkeep, put a -1/-1 counter on each creature. 2/3 |
| Boromir, Warden of the Tower | 2W | Legendary Creature — Human Soldier | Vigilance Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell. Sacrifice Boromir, Warden of the Tower: Creatures you control gain indestructible until end of turn. The Ring tempts you. 3/3 |
| Dosan the Falling Leaf | 1GG | Legendary Creature — Human Monk | Players can cast spells only during their own turns. 2/2 |
| Serra Avenger | WW | Creature — Angel | You can't cast this spell during your first, second, or third turns of the game. Flying, vigilance 3/3 |
| Justice | 2WW | Enchantment | At the beginning of your upkeep, sacrifice Justice unless you pay {W}{W}. Whenever a red creature or spell deals damage, Justice deals that much damage to that creature's or spell's controller. |