Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Fastbond

You may play any number of lands on each of your turns.
Whenever you play a land, if it wasn't the first land you played this turn, Fastbond deals 1 damage to you.

Erhnam Djinn

At the beginning of your upkeep, target non-Wall creature an opponent controls gains forestwalk until your next upkeep. (It can't be blocked as long as defending player controls a Forest.)

Mox Ruby

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Kird Ape

Kird Ape gets +1/+2 as long as you control a Forest.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Deadly Insect

Shroud (This creature can't be the target of spells or abilities.)

Shambling Strider

{R}{G}: Shambling Strider gets +1/-1 until end of turn.

Mystical Tutor

Search your library for an instant or sorcery card, reveal it, then shuffle and put that card on top.

Killer Bees

Flying
{G}: Killer Bees gets +1/+1 until end of turn.

Timetwister

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Mox Sapphire

Bayou

Berserk

Cast this spell only before the combat damage step.
Target creature gains trample and gets +X/+0 until end of turn, where X is its power. At the beginning of the next end step, destroy that creature if it attacked this turn.

Wheel of Fortune

Each player discards their hand, then draws seven cards.

Time Walk

Elven Riders

Elven Riders can't be blocked except by Walls and/or creatures with flying.

Fork

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Library of Alexandria

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

Mox Emerald

Tropical Island

Taiga

Regrowth

Return target card from your graveyard to your hand.

Hammer of Bogardan

Hammer of Bogardan deals 3 damage to any target.
{2}{R}{R}{R}: Return Hammer of Bogardan from your graveyard to your hand. Activate only during your upkeep.