1. Go to Mage Repository
2. Run command exemplified below:

For cards added since tagOrSha1 till head revision (you can replace HEAD with another tagOrSha1):
git log tagOrSha1..HEAD --diff-filter=A --name-status | sed -ne 's/^A[^u]Mage.Sets\/src\/mage\/sets\///p' | sort -u > added_cards.txt

for Windows: you need to replace ' by "" and remove -u in sort

Example for cards implemented from 0.8.7 till 0.9:
git log 9ac166abc92f70aebdbe34825880ff8f909465ed..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.0.2-release:
git log 6b38cd5b18298b07962b969bfa2eb69c62839575..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.0.3-release:
git log 7ba3d451da95183b8c1cfb732b332f640963cc4a..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

git log 68333a2eff6b643b2028d18dad16d1f228be7a2c..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
20130901
git log 10902581140fe4268fc12408f099ad82347d7cd0..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.1.0-release:
git log d6c1075125e657d4dd2e7bb120e108bb4c4536ff..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.1.2-2013_10_26-release:
git log 63889f5bd4faa0a0915bb1e845ca3a0bc1093070..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.2.0
git log b724d7fe136abbe09144eb2824739df3238061ee..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-02-03
git log 9c5d5208b96e28e1e767574e1143b845e6b7308f..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-02-15
git log 88d8c30b6c3dbf7c90354eccfd04107641c308f1..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-04-25
git log a1cfd040d74dd6d2100168754961cfebb154f153..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-05-10
git log e93cd580dd8ff985fbda018bb5ea652134c1865e..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-05-10v2
git log e484da4028e6c0498bbcd76b83af39bca93d26b1..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

since 1.3.0-2014-05-30v1
git log 99a60c3063521551ab08c506386729f1feaee257..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-06-15
git log 6c8b818d890e9e0ce4bc5e3128249bb9e62c0b23..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-06-28
git log 1129858a6c5c0dae5d1e29ea931804c1165b8c38..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-07-11
git log 458255cd0627af90c2ebeab4c410a16d55a36f41..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-07-19
git log 75eb0bdfdf36ba83dd5a3e2c6a204ceb186c9d5e..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-07-30
git log 69ce53e6e8036bf01bdd090e8785f4d63c486d1e..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-08-11
git log 709dc83ae6fd6778e5b52e5176a978f1c6fda3b7..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-08-19
git log edd1563c12422f69c10bc76d310e0a84421ab4a2..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-08-30
git log fbc2a7258face1e908f3f08da1c2fec4ec0f86fe..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-09-13
git log 632f711fe237defe43111f9b7236fda1da74bfc0..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-09-26
git log b76102b0cdb911c7217fc2f510b4de86651f91d2..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

since 1.3.0-2014-10-05
git log 8121849a185b913ef2de59fff2f3d9a6c9b3a613..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

since 1.3.0-2014-10-18v1
git log 58bbe60c724c7940996cf33db690d5eb1abfce0a..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-10-18v2 (2014-10-20)
git log 974cb4435bb826769b935aaffc8335eeaa83d53f..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt
since 1.3.0-2014-10-18v3 (2014-10-25)
git log 26b5a277c4404a93e3b41ba477c5ec58dedcf826..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

since 1.3.0-2014-11-01v1
git log 8426816b0948991fdb100ce010f009a4aae7796a..HEAD --diff-filter=A --name-status | sed -ne "s/^A[^u]Mage.Sets\/src\/mage\/sets\///p" | sort > added_cards.txt

3. Copy added_cards.txt to trunk\Utils folder
4. Run script:
> perl extract_in_wiki_format.perl
5. Open added_cards_in_wiki_format.txt
6. Copy content to release notes