Counter, Counter Tackle, Counter Flood, Brave Up, Dragon Spirit, Sunken State, and Caution Usability usability

Counter, Counter Tackle, Counter Magic, Counter Flood, Brave Up, Dragon Spirit,  Sunken State, and Caution Usability:
0018ce04: 27bdffe8 addiu r29,r29,0xffe8      	
0018ce08: afb00010 sw r16,0x0010(r29)      	
0018ce0c: 00808021 addu r16,r4,r0      		
0018ce10: 3c038019 lui r3,0x8019      		
0018ce14: 906338d4 lbu r3,0x38d4(r3)      	???
0018ce18: 34020015 ori r2,r0,0x0015      	
0018ce1c: 10620015 beq r3,r2,0x0018ce74      	
0018ce20: afbf0014 sw r31,0x0014(r29)      	
0018ce24: 3c028019 lui r2,0x8019      		
0018ce28: 904238f6 lbu r2,0x38f6(r2)      	Ability flags 4
0018ce2c: 00000000 nop				
0018ce30: 00451024 and r2,r2,r5          	
0018ce34: 1040000f beq r2,r0,0x0018ce74      	Branch if ability is not using  specific ability flag (counter magic/flood/etc.)			
0018ce38: 00000000 nop            		
0018ce3c: 3c048019 lui r4,0x8019      		
0018ce40: 8c842d98 lw r4,0x2d98(r4)      	Load Defender's Stats
0018ce44: 0c0634e1 jal 0x0018d384      		Chance to react
0018ce48: 00000000 nop            		
0018ce4c: 14400009 bne r2,r0,0x0018ce74      	
0018ce50: 00000000 nop            		
0018ce54: 3c038019 lui r3,0x8019      		
0018ce58: 8c632d90 lw r3,0x2d90(r3)      	Current Action Data Pointer
0018ce5c: 00000000 nop            		
0018ce60: a470000e sh r16,0x000e(r3)      	Reaction ID 
0018ce64: 3c028019 lui r2,0x8019      		
0018ce68: 944238d6 lhu r2,0x38d6(r2)      	Used Ability ID
0018ce6c: 00000000 nop            		
0018ce70: a4620026 sh r2,0x0026(r3)      	
0018ce74: 8fbf0014 lw r31,0x0014(r29)      	
0018ce78: 8fb00010 lw r16,0x0010(r29)      	
0018ce7c: 27bd0018 addiu r29,r29,0x0018      	
0018ce80: 03e00008 jr r31         		
0018ce84: 00000000 nop