If an effect exiles Summon: Esper Maduin and then instructs you to return it to the battlefield, it remains face up in exile (unless that effect instructs you to put it onto the battlefield transformed, in which case it returns as Summon: Esper Maduin)
A way to protect yourself for an entire turn and act as a colorless draw engine is just too good
The latter will often rapidly increase in value just after a set is released, and theyll tend to be the most visually interesting cards too
Like the other Glimmer creatures in this set, Enduring Tenacity returns as an enchantment after it dies, turning into an enchantment while keeping the ability which is more valuable than its power or toughness
A notable rule for sagas is that if it loses its chapter abilities, it does not get lore counter, nor does it get sacrificed as it used to due to a state-based action
These are commonly corrected in an official errata and when reprinted are given the correct text