MTG

Players can't untap more than one creature during their untap steps.

Flying (This creature can't be blocked except by creatures with flying or reach.) {R}: Shivan Dragon gets +1/+0 until end of turn.

Destroy target artifact.

Sedge Troll gets +1/+1 as long as you control a Swamp. {B}: Regenerate Sedge Troll.

Rock Hydra enters the battlefield with X +1/+1 counters on it. For each 1 damage that would be dealt to Rock Hydra, if it has a +1/+1 counter on it...

Flying

Choose one — • Counter target blue spell. • Destroy target blue permanent.

White creatures get +1/+1.

Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a...

At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the...

Attacking creatures you control get +1/+0.

{T}: Orcish Artillery deals 2 damage to any target and 3 damage to you.

Whenever a player taps a land for mana, Manabarbs deals 1 damage to that player.

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

Lightning Bolt deals 3 damage to any target.

Keldon Warlord's power and toughness are each equal to the number of non-Wall creatures you control.

Ironclaw Orcs can't block creatures with power 2 or greater.

At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}. All Mountains are Plains.

Flying {R}: Granite Gargoyle gets +0/+1 until end of turn.

Other Goblin creatures get +1/+1 and have mountainwalk. (They can't be blocked as long as defending player controls a Mountain.)