Series 4 was first released in 2001(-Scrye CCG Checklist and Price Guide second edition).
This 54 card set came packaged in pink, yellow, and green pack wrappers.
In these packs, gold stamp cards were 1:7 packs. Holographic cards were 1:3 packs. These holo cards were randomly inserted into series 3 packs. However you could only pull certain holos from certain pack wrappers (more on this later on this page). Please remember more information on specific cards can be found on the Digi-Battle checklist found on the Digi-Battle home page.
Here are the cards found in series 4:

BO-163

BO-164

BO-165

BO-166

BO-167

BO-168

BO-169

BO-170

BO-171

BO-172

[Dragon Mode]
BO-173

[Fighter Mode]
BO-174

BO-175

BO-176

BO-177

BO-178

BO-179

BO-180

BO-181

BO-182

BO-183

BO-184

BO-185

BO-186

BO-187

BO-188

BO-189

BO-190

BO-191

BO-192

BO-193

BO-194

BO-195

BO-196

BO-197

BO-198

BO-199

BO-200

BO-201

BO-202

BO-203

BO-204

BO-205

BO-206

BO-207

BO-208

BO-209

BO-210

BO-211

BO-212

BO-213

BO-214

BO-215

BO-216
Holographic versions of each Digimon (not the power option cards) could be found in booster packs. These cards are marked with an “S” in the upper right of the card below the card number. Notice their best attack has 10 more points than their non-holo counterpart.
The holo versions of BO-163 to BO-176 could be pulled from the pink packs.

BO-163S

BO-164S

BO-165S

BO-166S

BO-167S

BO-168S

BO-169S

BO-170S

BO-171S

BO-172S

[Dragon Mode]
BO-173S

[Fighter Mode]
BO-174S

BO-175S

BO-176S
The holo versions of BO-177 to BO-190 could be pulled from the yellow packs.

BO-177S

BO-178S

BO-179S

BO-180S

BO-181S

BO-182S

BO-183S

BO-184S

BO-185S

BO-186S

BO-187S

BO-188S

BO-189S

BO-190S
The holo versions of BO-191 to BO-204 could be pulled from the green packs.

BO-191S

BO-192S

BO-193S

BO-194S

BO-195S

BO-196S

BO-197S

BO-198S

BO-199S

BO-200S

BO-201S

BO-202S

BO-203S

BO-204S