Greater Good

Sacrifice a creature: Draw cards equal to the sacrificed creature's power, then discard three cards.

Orochi Leafcaller

Summer Bloom

You may play up to three additional lands this turn.

Harmonize

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Chandra's Ignition

Target creature you control deals damage equal to its power to each other creature and each opponent.

Yawgmoth's Bargain

Skip your draw step.
Pay 1 life: Draw a card.

Quicksilver Amulet

{4}, {T}: You may put a creature card from your hand onto the battlefield.

Rofellos, Llanowar Emissary

{T}: Add {G} for each Forest you control.

Leovold, Emissary of Trest

Each opponent can't draw more than one card each turn.
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

Hellkite Overlord

Flying, trample, haste
{R}: Hellkite Overlord gets +1/+0 until end of turn.
{B}{G}: Regenerate Hellkite Overlord.