As an additional cost to cast this spell, discard X cards at random.
Each player sacrifices X lands of their choice. Devastating Dreams deals X damage to each creature.

You may pay rather than pay this spell's mana cost.
If the cost was paid, an opponent chooses up to two nonland permanents they control and returns them to their owner's hand.
Destroy all nonland permanents.

As an additional cost to cast this spell, sacrifice X lands.
Create two X/X red Elemental creature tokens.

Destroy all creatures and lands.

Return all nonland permanents to their owners' hands.
Miracle

Enchant creature
Enchanted creature gets +2/+1 and has ": This creature gains trample until end of turn."

Start your engines!
When this enchantment enters, create two 1/1 colorless Thopter artifact creature tokens with flying.
Max speed — Sacrifice this enchantment: Create two 1/1 colorless Thopter artifact creature tokens with flying

When this creature dies, it deals 1 damage to any target.

Trample
Other Dinosaurs you control get +1/+1 and have hexproof.

Haste
When Devil K. Nevil enters, jump it over any number of creatures. If it clears those creatures, put that many +1/+1 counters on it. (You can see a jumping demonstration at DevilKNevil.com.)

Trample, haste
Alliance — Whenever another creature you control enters, double this creature's power until end of turn.

Create four 1/1 red Devil creature tokens. They have "When this token dies, it deals 1 damage to any target."

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may shuffle up to four target cards from your graveyard into your library.

: This creature gets +2/+2 until end of turn.

, : Target permanent you control gains protection from instant spells and from sorcery spells until end of turn.

You may exert this creature as it attacks. When you do, return target creature card with mana value 2 or less from your graveyard to the battlefield.

: Add .
Put a -1/-1 counter on this creature: Untap this creature.

Haste
Flurry — Whenever you cast your second spell each turn, this creature deals 1 damage to each opponent.

When this creature enters, mill two cards.
Whenever you cast a spell from your graveyard, tap target creature you don't control.
Disturb

Beacon of Hope — When this creature enters, creatures you control get +1/+1 and gain vigilance until end of turn.

: Target creature gets +2/+2 until end of turn.

Target player sacrifices a creature of their choice, then gains life equal to that creature's toughness.

As an additional cost to cast this spell, return a land you control to its owner's hand.
Devour in Flames deals 5 damage to target creature or planeswalker.

Destroy target creature. It can't be regenerated. You lose life equal to that creature's toughness.

Target opponent discards a card. If mana from a Treasure was spent to cast this spell, instead that player reveals their hand, you choose a nonland card from it, then that player discards that card.

You may reveal this card from your opening hand. If you do, at the beginning of your first upkeep, look at the top four cards of your library. You may put one of those cards back on top of your library. Exile the rest.
When you cast this spell, exile target permanent that's one or more colors.