Batomon Showdown Coalem

Coalem triggers itself at the start of the battle, and that cast carries a large Shield and Burn.

Coalem is listed as Tier 4, Cost 45, Type fire and rock.

Triggering itself at battle start

The listed effect is Trigger this, so the ability acts on this monster at the start of the battle.

Shiny keeps that effect and adds a permanent Shield gain that rises with level: +30, +60, +90 and +540.

Levels and Normal versus Shiny

Shield and Burn rise with level, and level 4 also shortens the cooldown sharply.

Coalem level comparison
Cooldown is measured in seconds.
LevelCooldownShieldBurn
115s45020
215s90040
315s135060
45s5400240

Coalem questions

What does Shiny add?

A permanent Shield gain alongside the same trigger: +30, +60, +90 and +540 by level.

Keep the battle-start trigger separate from the timed cast that follows.

Sources

Level values, ability wording and trigger labels are read from the game's own data files for a fixed build.