Black is pretty highly played in Commander, and the addition of an Urborg, Tomb of Yawgmoth can make all your creatures unblockable
Elsewhere, players should only use Pack Points to obtain the 3 Star and Crown cards
Whenever you Populate, you make a copy of an existing creature token

Mime #123 Scyther #124 Jynx ex #125 Electabuzz #126 Magmar #127 Pinsir #128 Tauros #129 Magikarp #130 Gyarados #131 Lapras #132 Ditto #133 Eevee #134 Vaporeon #135 Jolteon #136 Flareon #137 Porygon #138 Omanyte #139 Omastar #140 Kabuto #141 Kabutops #142 Aerodactyl #143 Snorlax #144 Articuno #145 Zapdos ex #146 Moltres #147 Dratini #148 Dragonair #149 Dragonite #150 Mewtwo #151 Mew ex #152 Charmander #153 Pidgey #154 Pidgeotto #155 Raichu #156 Jigglypuff #157 Oddish #158 Gloom #159 Vileplume #160 Abra #161 Kadabra #162 Doduo #163 Dodrio #164 Voltorb #165 Electrode #166 Staryu #167 Starmie #168 Ditto #169 Snorlax #170 Pikachu #171 Pikachu #172 Pikachu #173 Pikachu #174 Venusaur ex #175 Charizard ex #176 Blastoise ex #177 Arbok ex #178 Ninetales ex #179 Wigglytuff ex #180 Alakazam ex #181 Golem ex #182 Kangaskhan ex #183 Jynx ex #184 Zapdos ex #185 Mew ex #186 Wigglytuff ex #187 Alakazam ex #188 Mew ex #189 Alakazam ex #190 Zapdos ex #191 Mew ex #192 Mew ex 25/151 Other Pikachu Cards Pikachu 60 HP Charge Search your deck for a Basic Energy and attach it to this Pokmon

All for the low cost of two mana
Right now, the two biggest are Dredge (a top-four deck in the format) and Storm (a solid tier-two deck), although part of the power of Relic of Progenitus and Surgical Extraction is that they have a lot of random value in other matchups as well