Devour 1 (As this enters, you may sacrifice any number of creatures. This creature enters with that many +1/+1 counters on it.)

When Caldera Hellion enters, it deals 3 damage to each creature.

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.)

When Crater Hellion enters, it deals 4 damage to each other creature.

Haste

Flameborn Hellion attacks each combat if able.

: Add .

, : Put a pressure counter on Hellion Crucible.

, , Remove two pressure counters from Hellion Crucible and sacrifice it: Create a 4/4 red Hellion creature token with haste. (It can attack and as soon as it comes under your control.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

At the beginning of each end step, if Inferno Hellion attacked or blocked this turn, its owner shuffles it into their library.

Haste

When Lathnu Hellion enters, you get (two energy counters).

At the beginning of your end step, sacrifice Lathnu Hellion unless you pay .

Haste

Whenever Tectonic Hellion attacks, each player who controls the most lands sacrifices two lands of their choice.