Elixir Formula

0018a2c4: 27bdffe8 addiu r29,r29,-0x0018    |
0018a2c8: afbf0010 sw r31,0x0010(r29)       |
0018a2cc: 0c0620b2 jal 0x001882c8           |-->100% HP/MP Healing (actual) Set TCA HP damage to 100% and MP recovery to 100%
0018a2d0: 00000000 nop                      |
0018a2d4: 0c061cd4 jal 0x00187350           |-->Undead Reversal Switch HP damage to HP recovery if Target isn't undead
0018a2d8: 00000000 nop                      |
0018a2dc: 8fbf0010 lw r31,0x0010(r29)       |
0018a2e0: 27bd0018 addiu r29,r29,0x0018
0018a2e4: 03e00008 jr r31
0018a2e8: 00000000 nop

Return location

Battle.bin
0018b97c - Pre Formula Setup