Dragon Blood

{3}, {T}: Put a +1/+1 counter on target creature.

Gutless Ghoul

{1}, Sacrifice a creature: You gain 2 life.

Target attacking creature gets +X/+0 until end of turn.
Draw a card at the beginning of the next turn's upkeep.

Reach (This creature can block creatures with flying.)
{R}: Steam Spitter gets +1/+0 until end of turn.

When Darigaaz's Caldera enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {B}, {R}, or {G}.

When Symbiotic Beast dies, create four 1/1 green Insect creature tokens.

Each creature that's a Barbarian, a Warrior, or a Berserker gets +2/+2 and has haste.

Blue spells and red spells you cast cost {1} less to cast.
{1}{B}: Regenerate Nightscape Familiar.