The regal and reticent Prime Speaker Zegana is the merfolk guildmaster of the Simic Combine. She upholds the traditional ways of the guild and its utopian philosophy, which espouses a vision of an ideal world in which nature and civilization coexist in perfect balance. Some people in the guild-members of the Adaptationist faction in particular-argue that her ways are outdated and the guild requires more practical leadership. In response, Zegana maintains that she serves as prime speaker only at the sufferance of the Speakers’ Chamber, and if the other speakers wish to replace her, they are certainly within their rights to do so.
Amphibious
Zegana can breathe air and water.
Legendary Resistance (3/Day)
If Zegana fails a saving throw, she can choose to succeed instead.
Magic Resistance
Zegana has advantage on saving throws against spells and other magical effects.
Spellcasting
Zegana is a 15th-level Simic spellcaster. Her spellcasting ability is Intelligence (spell save DC 18, +10 to hit with spell attacks). She has the following wizard spells prepared:
Cantrips (at will): acid splash, druidcraft, ray of frost, shape water
1st level (4 slots): color spray, expeditious retreat, fog cloud, shield
2nd level (3 slots): enlarge/reduce, gust of wind
3rd level (3 slots): counterspell, fly, slow
4th level (3 slots): control water, ice storm, polymorph
5th level (2 slots): conjure elemental, creation
6th level (1 slot): move earth, wall of ice
7th level (1 slot): prismatic spray, teleport
8th level (1 slot): control weather, dominate monster
More details can be found here: Zegana – dndtools (dndink.com)