Malistaire's Dragon

Companion with Malistaire the Undying
Malistaire's Dragon may only enter the battlefield if Malistaire the undying or Haunted Malistaire is on
the battlefield, otherwise sacrifice it.
Flying, Indestructible, Ward 3, Defender.
If Haunted Malistaire is on the battlefield,
Malistaire's dragon deals 5 damage to each opponent
at the start of your upkeep and gets a -0/-5 counter
at the start of your end step.