Awesome Cyber Monday

When Sin Collector enters the battlefield, target opponent reveals their hand. You choose an instant or sorcery card from it and exile that card.

Double strike Savageborn Hydra enters the battlefield with X +1/+1 counters on it. {1}{R/G}: Put a +1/+1 counter on Savageborn Hydra. Activate this...

Populate. (Create a token that's a copy of a creature token you control.)

{T}: Add {U} or {R}. {U}{R}, {T}, Sacrifice Izzet Cluestone: Draw a card.

{T}: Add {R} or {G}. {R}{G}, {T}, Sacrifice Gruul Cluestone: Draw a card.

Counter target spell unless its controller pays {6}.

{T}: Add {B} or {G}. {B}{G}, {T}, Sacrifice Golgari Cluestone: Draw a card.

{T}: Add {U} or {B}. {U}{B}, {T}, Sacrifice Dimir Cluestone: Draw a card.

{T}: Add {R} or {W}. {R}{W}, {T}, Sacrifice Boros Cluestone: Draw a card.

You may tap or untap target permanent, then you may tap or untap another target permanent. Cipher (Then you may exile this spell card encoded on a ...

Whenever a player taps a land for mana, that player adds one mana of any type that land produced.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.) Protection from green

Target creature gets +X/-X until end of turn, where X is the number of cards in your hand.

Warleader's Helix deals 4 damage to any target and you gain 4 life.

{G}{U}, {T}: Double the number of each kind of counter on target artifact, creature, or land.

Lifelink (Damage dealt by this creature also causes you to gain that much life.) Extort (Whenever you cast a spell, you may pay {W/B}. If you do, e...

Rot Farm Skeleton can't block. {2}{B}{G}, Mill four cards: Return Rot Farm Skeleton from your graveyard to the battlefield. Activate only as a sor...

Return each creature that dealt damage this turn to its owner's hand.

Counter target spell. Its controller can't cast spells this turn.

Target opponent reveals their hand. You choose up to X nonland cards from it and exile them. For each card exiled this way, search that player's gr...

[+1]: Tap target permanent, then untap another target permanent. [-2]: Ral Zarek deals 3 damage to any target. [-7]: Flip five coins. Take an extra...

Destroy target artifact or creature. It can't be regenerated.

You may have Progenitor Mimic enter the battlefield as a copy of any creature on the battlefield, except it has "At the beginning of your upkeep, i...

Counter target spell. At the beginning of your next precombat main phase, add X mana in any combination of colors, where X is that spell's mana value.