Awesome Cyber Monday

You have no maximum hand size. {T}: Add one mana of any color.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Commander creatures you own have "This creature enters the battlefield with an additional +1/+1 counter on it" and "Other creatures you control ent...

As an additional cost to cast this spell, sacrifice an artifact or creature. Draw two cards and create a Treasure token. (It's an artifact with "{T...

Exile target creature you control, then return that card to the battlefield under its owner's control. Draw a card.

Sea Gate enters the battlefield tapped. As Sea Gate enters the battlefield, choose a color other than blue. {T}: Add {U} or one mana of the chosen ...

{T}: Add one mana of any color in your commander's color identity.

Cliffgate enters the battlefield tapped. As Cliffgate enters the battlefield, choose a color other than red. {T}: Add {R} or one mana of the chosen...

Create a token that's a copy of target creature you control, except the token has flying and it isn't legendary if that creature is legendary.

Avoidance — Whenever you cast a noncreature spell, exile up to one target nonland permanent you control, then return that card to the battlefield u...

Charcoal Diamond enters the battlefield tapped. {T}: Add {B}.

{1}, {T}: Untap another target artifact. {3}, {T}: Target creature can't be blocked this turn.

Flying, ward {2} Whenever another nontoken Dragon enters the battlefield under your control, create a token that's a copy of it, except the token i...

{T}: Add {R}. If that mana is spent on a Dragon creature spell, it gains haste until end of turn.

{1}{B}, {T}, Sacrifice another creature: Draw X cards, where X is that creature's power. Choose a Background (You can have a Background as a second...

Commander creatures you own have "Whenever this creature attacks a player, if no opponent has more life than that player, this creature can't be bl...

Bigby's Hand — {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.

As Kindred Discovery enters the battlefield, choose a creature type. Whenever a creature you control of the chosen type enters the battlefield or a...

When Undercellar Sweep enters the battlefield, you take the initiative. Whenever you attack, if you or a player you're attacking has the initiative...

Flash Enchant creature Enchanted creature gets +0/+10.

When Minsc & Boo, Timeless Heroes enters the battlefield and at the beginning of your upkeep, you may create Boo, a legendary 1/1 red Hamster c...

Sea of Clouds enters the battlefield tapped unless you have two or more opponents. {T}: Add {W} or {U}.

Morphic Pool enters the battlefield tapped unless you have two or more opponents. {T}: Add {U} or {B}.