[+1]: Target land you control becomes a 4/4 Elemental creature with trample. It's still a land. [+1]: Untap up to four target Forests. [–7]: Search your library for any number of basic land cards, put them onto the battlefield, then shuffle. Those lands become 4/4 Elemental creatures with trample. They're still lands.
If a source an opponent controls would deal damage to you, prevent 1 of that damage. At the beginning of each end step, if you've been dealt 5 or more damage this turn, abandon this scheme.
When Oblivion Ring enters the battlefield, exile another target nonland permanent. When Oblivion Ring leaves the battlefield, return the exiled card to the battlefield under its owner's control.
{1}{R}{R}: Put a blaze counter on target land without a blaze counter on it. For as long as that land has a blaze counter on it, it has "At the beginning of your upkeep, this land deals 1 damage to you."
First strike Whenever Odric, Master Tactician and at least three other creatures attack, you choose which creatures block this combat and how those creatures block.
Trample Landfall — Whenever a land enters the battlefield under your control, put a +1/+1 counter on Oran-Rief Hydra. If that land is a Forest, put two +1/+1 counters on Oran-Rief Hydra instead.
Flying When Overseer of the Damned enters the battlefield, you may destroy target creature. Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.
"You are the grandest of all," said the archdruid to the trees. They became so proud of bark and branch that they suffered no creature to fly overhead or perch upon a bough.
When you set this scheme in motion, draw three cards. You have no maximum hand size until your next turn. If you control six or more lands, you may cast up to three spells from your hand without paying their mana costs.
Choose two — • Target player gains 7 life. • Put target noncreature permanent on top of its owner's library. • Target player shuffles their graveyard into their library. • Search your library for a creature card, reveal it, put it into your hand, then shuffle.
Rakdos Carnarium enters the battlefield tapped. When Rakdos Carnarium enters the battlefield, return a land you control to its owner's hand. {T}: Add {B}{R}.
{3}{B}, Discard a card: Target creature gets -2/-2 until end of turn. {3}{R}: Create a 2/1 red Goblin creature token with haste. Exile it at the beginning of the next end step.