M:tG card similarity search
4BR · Legendary Creature — Goblin Rogue
When Grenzo enters the battlefield and at the beginning of your upkeep, heist target opponent's library. Once each turn, you may pay {0} rather than pay the mana cost for a spell you cast that you don't own. 6/4
| Name | Mana | Type | Text |
|---|---|---|---|
| Protection Racket | 2B | Enchantment | At the beginning of your upkeep, repeat the following process for each opponent in turn order. Reveal the top card of your library. That player may pay life equal to that card's mana value. If they do, exile that card. Otherwise, put it into your hand. |
| Squealing Devil | 1R | Creature — Devil | Fear (This creature can't be blocked except by artifact creatures and/or black creatures.) When Squealing Devil enters the battlefield, you may pay {X}. If you do, target creature gets +X/+0 until end of turn. When Squealing Devil enters the battlefield, sacrifice it unless {B} was spent to cast it. 2/1 |
| Defiler of Flesh | 2BB | Creature — Phyrexian Horror | Menace As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost {B} less to cast if you paid life this way. This effect reduces only the amount of black mana you pay. Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace until end of turn. 4/4 |
| Palladia-Mors | 2RRGGWW | Legendary Creature — Elder Dragon | Flying, trample At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay {R}{G}{W}. 7/7 |
| Power Leak | 1U | Enchantment — Aura | Enchant enchantment At the beginning of the upkeep of enchanted enchantment's controller, that player may pay any amount of mana. Power Leak deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way. |
| Infernal Darkness | 2BB | Enchantment | Cumulative upkeep—Pay {B} and 1 life. (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.) If a land is tapped for mana, it produces {B} instead of any other type. |
| Stasis | 1U | Enchantment | Players skip their untap steps. At the beginning of your upkeep, sacrifice Stasis unless you pay {U}. |
| Ragemonger | 1BR | Creature — Minotaur Shaman | Minotaur spells you cast cost {B}{R} less to cast. This effect reduces only the amount of colored mana you pay. (For example, if you cast a Minotaur spell with mana cost {2}{R}, it costs {2} to cast.) 2/3 |
| Arcane Proxy | 7 | Artifact Creature — Wizard | Prototype {1}{U}{U} — 2/1 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) When Arcane Proxy enters the battlefield, if you cast it, exile target instant or sorcery card with mana value less than or equal to Arcane Proxy's power from your graveyard. Copy that card. You may cast the copy without paying its mana cost. 4/3 |
| Spectral Arcanist | 3U | Creature — Spirit Wizard | Flying When Spectral Arcanist enters the battlefield, you may cast an instant or sorcery spell with mana value less than or equal to the number of Spirits you control from a graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead. 3/2 |