Whenever this creature becomes blocked, it gets +1/+1 until end of turn for each creature blocking it.

Defender
: Mill a card. You may put a land card milled this way into your hand. You gain 2 life if a Lesson card is milled this way.

When this creature dies, put a +1/+1 counter on target creature you control.

Equipped creature has first strike.
: Attach this Equipment to target creature you control.
Equip

Big booms and lessons

Flying
When this creature enters, you may pay . When you do, it deals 3 damage to any target.

, , Discard a card: Create a 3/1 red Elemental creature token named Spark Elemental. It has trample, haste, and "At the beginning of the end step, sacrifice this token."

: This creature deals X damage to target creature and X damage to you, where X is the number of Goblins on the battlefield.

At the beginning of combat on your turn, choose any number of target planeswalkers you control. Until end of turn, they become 3/3 blue Bird creatures with flying, hexproof, and "Whenever this creature deals combat damage to a player, scry 1." (They're no longer planeswalkers. Loyalty abilities can still be activated.)

Sparks Ablaze deals 2 damage to target creature or planeswalker. If that creature or planeswalker would die this turn, exile it instead.
The next planeswalker spell you cast costs less to cast.

Sparkmage's Gambit deals 1 damage to each of up to two target creatures. Those creatures can't block this turn.

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

As an additional cost to cast this spell, discard a card.
Protection from planeswalkers
: This creature deals 1 damage to target planeswalker.
: This creature gains indestructible until end of turn.

When this creature enters, return a red or green creature you control to its owner's hand.
When this creature enters, it deals 1 damage to target player or planeswalker.

Trample, lifelink, haste
At the beginning of the end step, sacrifice this creature.

Spark Spray deals 1 damage to any target.
Cycling

When this enchantment enters, draw a card.
Each planeswalker with one or more loyalty counters on it loses all abilities and is a creature with power and toughness each equal to the number of loyalty counters on it.

, Sacrifice a creature or planeswalker: You gain 1 life and draw a card.

Choose target creature. Exile the top card of your library. You may have Spark of Creativity deal damage to that creature equal to the exiled card's mana value. If you don't, you may play that card until end of turn.

Whenever this creature deals combat damage to a player, you may have this creature deal 1 damage to target creature that player controls.

Spark Jolt deals 1 damage to any target. Scry 1.

As an additional cost to cast this spell, sacrifice a creature or pay .
Destroy target creature or planeswalker.

When Spark Fiend enters, roll two six-sided dice. On a total of 2, 3, or 12, sacrifice Spark Fiend. On a total of 7 or 11, do not roll dice for Spark Fiend during any of your following upkeeps. If you roll any other total, note it.
At the beginning of your upkeep, roll two six-sided dice. On a total of 7, sacrifice Spark Fiend. If you roll the noted total, do not roll dice for Spark Fiend during any of your following upkeep steps. On any other roll, there is no effect.

Trample, haste
At the beginning of the end step, sacrifice this creature.

You may have this creature enter as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

This artifact enters tapped.
When this artifact enters, draw a card.
, , Sacrifice this artifact: Draw a card.

Creatures you control gain protection from non-Human creatures until end of turn.

Equipped creature gets +1/+0 and has "Whenever this creature attacks, you may sacrifice Spare Dagger. When you do, this creature deals 1 damage to any target."
Equip