This spell can't be countered.
Inescapable Blaze deals 6 damage to any target.

Flying, haste

Flying (This creature can't be blocked except by creatures with flying or reach.)
When this creature dies, return it to its owner's hand.

You draw two cards and each opponent discards two cards. Each player loses 2 life.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Whenever another creature you control with power 2 or less enters, you gain 1 life and draw a card.

Double strike
Whenever this creature attacks, other creatures you control gain double strike until end of turn.

Flying, trample
Whenever this creature deals combat damage to a player, that player sacrifices a creature of their choice.

Target player draws seven cards.

Flying
Whenever a creature with flying attacks, you may draw a card.

Flying
When this creature enters, destroy all Walls your opponents control.
Whenever this creature attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.

Trample
Whenever this creature attacks, it gets +1/+1 until end of turn for each land you control.