Thermo-Alchemist

Defender
{T}: Thermo-Alchemist deals 1 damage to each opponent.
Whenever you cast an instant or sorcery spell, untap Thermo-Alchemist.

Mountain

{T}: Kindlespark Duo deals 1 damage to target opponent.
Whenever you cast a noncreature spell, untap Kindlespark Duo.

Creatures you control gain first strike until end of turn.
Draw a card.

Lightning Bolt deals 3 damage to any target.

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

Target creature gains trample until end of turn. It also gets +1/+0 until end of turn if you control a Mouse.
Draw a card.

Draw two cards, then discard two cards.
Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target creature can't block this turn.
Draw a card.

As an additional cost to cast this spell, discard a card.
Draw two cards.