Flying (This creature can't be blocked except by creatures with flying or reach.)Nightmare's power and toughness are each equal to the number of Swamps you control.
Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player...
Remove Contract from Below from your deck before playing if you're not playing for ante.Discard your hand, ante the top card of your library, then draw seven cards.
Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.
Rock Hydra enters 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, remove a +1/+1 counter from it and prevent that 1 damage.: Prevent the next 1 damage that would be dealt to Rock Hydra this turn.: Put a +1/+1 counter on Rock Hydra. Activate only during your upkeep.