Keyword: Haste

Haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Flying, haste

First strike, haste
Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

Haste (This creature can attack and 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.)

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)
Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, sacrifice Ball Lightning.

Flying, trample, haste, protection from black
Spirit of the Night has first strike as long as it’s attacking.

Haste

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

Flying, haste

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

Haste
: Furnace Spirit gets +1/+0 until end of turn.

Haste
: Flowstone Hellion gets +1/-1 until end of turn.

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

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

Haste (This creature can attack and as soon as it comes under your control.)
When Thundermare enters the battlefield, tap all other creatures.

Haste
When Lava Hounds enters the battlefield, it deals 4 damage to you.

Haste (This creature can attack and as soon as it comes under your control.)
When Thundermare enters the battlefield, tap all other creatures.

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

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

Flying, haste

Haste

Haste

First strike, haste

Trample (This creature can deal excess combat damage to the player or planeswalker it’s attacking.)
Haste (This creature can attack and as soon as it comes under your control.)
At the beginning of the end step, sacrifice Ball Lightning.

Haste
At the beginning of your upkeep, if Nether Shadow is in your graveyard with three or more creature cards above it, you may put Nether Shadow onto the battlefield.