If you try to use a special move while in Sekhmet Mode, it will immediate put you back in Eliza and the special won't activate and it will be put on cooldown.
If you try to use a blockbuster while in Sekhmet Mode, nothing will happen but once you return to Eliza the blockbuster will not activate and all charges of that blockbuster will be consumed.
If you try to use a blockbuster while in Sekhmet Mode, nothing will happen but once you return to Eliza the blockbuster will not activate and all charges of that blockbuster will be consumed.