Enchant creature (Target a creature as you cast this. This card enters the battlefield attached to that creature.)
: Regenerate enchanted creature. (The next time that creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Return target card from your graveyard to your hand.

Return target creature card from your graveyard to the battlefield.

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.

Target blocking creature gets +7/+7 until end of turn.

Flying

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, 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 this ability only during your upkeep.

, : Rod of Ruin deals 1 damage to any target.

: Destroy target tapped creature.

As an additional cost to cast this spell, sacrifice a creature.
Add an amount of equal to the sacrificed creature's converted mana cost.

: Prevent the next 1 damage that would be dealt to any target this turn.

(: Add or .)

At the beginning of each end step, put a corpse counter on Scavenging Ghoul for each creature that died this turn.
Remove a corpse counter from Scavenging Ghoul: Regenerate Scavenging Ghoul.

(: Add or .)

Flying

Sea Serpent can't attack unless defending player controls an Island.
When you control no Islands, sacrifice Sea Serpent.

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

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.