Mountain

Stone Quarry

Stone Quarry enters tapped.
{T}: Add {R} or {W}.

Jackal Pup

Whenever Jackal Pup is dealt damage, it deals that much damage to you.

Suq'Ata Lancer

Haste
Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.)

Lightning Elemental

Haste (This creature can attack and {T} as soon as it comes under your control.)

Blood Lust

If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Plains

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Thunderbolt

Choose one —
• Thunderbolt deals 3 damage to target player or planeswalker.
• Thunderbolt deals 4 damage to target creature with flying.

Viashino Sandstalker

Haste (This creature can attack and {T} as soon as it comes under your control.)
At the beginning of the end step, return Viashino Sandstalker to its owner's hand. (Return it only if it's on the battlefield.)

Pyroclasm

Pyroclasm deals 2 damage to each creature.

Incinerate

Incinerate deals 3 damage to any target. A creature dealt damage this way can't be regenerated this turn.

Icatian Javelineers

Icatian Javelineers enters with a javelin counter on it.
{T}, Remove a javelin counter from Icatian Javelineers: It deals 1 damage to any target.