Let's Play FF7 Remake Hard Mode - Chapter 18 - defeating the Whispers, Sephiroth, and Game Ending

Final battle on hard mode. Took a few tries but I finally did it!
Materia and equipment loadout:

Cloud: Twin stinger, Chain Bangle, Gotterdammerung:
Revival, Hp up, Hp up, Time, Healing, Steadfast block, First strike, Magic up
Elemental + Fire (on your armor)

Barrett: Ekg cannon, Rune Amulet, Champion belt:
Healing, Steadfast block, Time, Fire, MP up, MP up, Magic up, Chakra, Prayer

Tifa: Purple pain, Force Bracelet, Champion Belt:
Prayer, Refocus, Wind, Lightning, Barrier, First Strike, Revival, Hp up, Hp up, Steadfast block

Aerith: Reinforced Staff, Force Bracelet + Spectral Cogwheel:
Magnify + Healing, Barrier, Mp up, Auto-cure, Hp up, Mp up, Revival
Elemental + Lightning (on armor)

I used Bahamut Summon.

Strategy here: The first battle with the whispers, just try to avoid attacks and stay healthy. The whispers just become healed up, so save your limit breaks and atb as much as possible for the next battle. Subsequent battles, go to town on them. If you stagger one, put all your focus on the staggered one to eliminate it.

For Sephiroth, first part of the battle is easy - just go into punisher mode and block for counterattacks. Afterwards, keep the focus on cloud - buff Cloud up with Manawall and keep healing him. When Sephiroth does Heartless Angel, run away!

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