My Universe, My Rules
Showing 44 of 94 Blue cards
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Defender
When Mirrorgate blocks a creature, you take control of that creature, and the creature's former controller takes control of Mirrorgate. (They are both both removed from combat before they deal damage.)
When Mirrorgate blocks a creature, you take control of that creature, and the creature's former controller takes control of Mirrorgate. (They are both both removed from combat before they deal damage.)
0/3
Cards which refer to things by name can be interpreted by their controller to mean any instance of that card.
(For example, if you control two Nantuko Shade, a creature which says '
:Nantuko Shade gains +1/+1', you could activate the ability of one, to give the other +1/+1. Which is unlikely to be useful unless one has somehow had its ability removed.)
(For example, if you control two Nantuko Shade, a creature which says '
:Nantuko Shade gains +1/+1', you could activate the ability of one, to give the other +1/+1. Which is unlikely to be useful unless one has somehow had its ability removed.)
Illus. Leynia
1/1
Enchanted creature is a 2/2 knight and has first strike.
All activated abilities of enchanted creature are countered.
All activated abilities of enchanted creature are countered.
Forgery? You wound me sirrah!
Time travel, of course.
Time travel, of course.
The next spell you cast this turn with a single target instead targets everything it can.
: Deal 1 damage to any target.
Damage dealt to artifacts reduces their next activation this turn by that much colourless mana.
1/1
Choose a player who has lost the game.
They re-enter the game with 20 life, and take control of one land, one creature, one artifact of their choice from each other player.
They re-enter the game with 20 life, and take control of one land, one creature, one artifact of their choice from each other player.
When a player casts a creature, all other players may put an artifact into play from their hand.
When a player casts an artifact, all other players may put a land into play from their hand.
When a player plays a land, all other players may put a creature into play from their hand.
When a player casts an artifact, all other players may put a land into play from their hand.
When a player plays a land, all other players may put a creature into play from their hand.
Unless controller of target creature spell pays 
, counter that spell.
If they do, you may pay to repeat this process.
, counter that spell.
If they do, you may pay
to repeat this process.
: Reveal a card from your hand. Until end of turn you may activate its abilities as though you had cast it. (So you may not unless it has haste.)1/3
At the start of your upkeep, put a charge counter on Spikemage.
,: Counter target spell that costs X, where X is the number of time counters on Spikemage.
,: Counter target spell that costs X, where X is the number of time counters on Spikemage.1/1
Ssensible sserpent cannot attack unless more creatures are attacking than the defender controls untapped creatures.
2/2
St Francis of Asissi (Not the Urza's Legacy one) cannot attack or block.
Birds you control have vigilance.
Birds you control have vigilance.
Deep 
1/1
When tokens leave the battlefield, they become cards. (And thus can be put into graveyards, libraries, hands, etc.)
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)
Target spell has storm. (Copy it for each spell cast this turn.)
Target spell has storm. (Copy it for each spell cast this turn.)
If Superiority is in your hand before the game starts, you may reveal it and exile it.
Whenever Superiority is cast or exiled, each player draws a card and then each other player discards a card.
Whenever Superiority is cast or exiled, each player draws a card and then each other player discards a card.
Illus. Liujuin
Target spell or effect which has one or more target, may select targets which are not currently legal but which were at some point in the past which you identify.
Name a card.
Target opponent may not use that card in the next deck they build.
Target opponent may not use that card in the next deck they build.
The Big. Bad. I said NO.
Artifact – Office Equipment
: At the end of this turn, take an additional turn.How I first misread Temporal Mastery. And if you add some kind of tactician-style protection, it's probably not unfair either.
Tetraid Ursine is blocked.
Because there must be some reason for the phrase "When attacking creature is blocked" bothering to specify 'attacking'...
2/2
Change the text of target spell or permanent by replacing all instances of one sub-type with another. (For example, you may change "elf" to "swamp" This effect lasts indefinitely.)
Counter target spell.
As an additional cost to cast Ultimate Emblem, don't draw a card.
As an additional cost to cast Ultimate Emblem, don't draw a card.
Until end of turn you may cast creature spells that are not legal in the format.
Why didn't I think of this before..?
Put an emblem into play which says:
All counters on creatures are +1/+1 counters.
All counters on artifacts are charge counters.
All counters on creatures are +1/+1 counters.
All counters on artifacts are charge counters.
All counters on artifact-creatures are in a quantum superposition, only resolvable by APNAP and quantum layer theory.
Wall of impossibility can block creatures that Wall of impossibility cannot block.
1/4
Creatures entering the battlefield enter the battlefield.
And uh, then I guess they enter the battlefield? But it's too late to counterspell them? Stupid warp zone.
Targets are blue.
(This effect does not wear off at end of turn, nor does that one.)
(This effect does not wear off at end of turn, nor does that one.)
You target it? It's a zombie. I mean blue.
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When you control no permanents, flip Middle Finger.