Unless you want to focus on just one critter type (building Blech as insect tribal seems quite popular) you're probably going to want Blex in your deck, since it's the only card that will act as a lord for all of your creatures

Acolyte of Aclazotz Aerial Toastmaster Agency Coroner Ahn-Crop Invader Ahriman Anje, Maid of Dishonor Apocalypse Demon Aron, Benalia's Ruin Ashad, the Lone Cyberman Ashnod, Flesh Mechanist Ayara, First of Locthwain Ayara, Widow of the Realm Ayli, Eternal Pilgrim Bag of Devouring Baron Bertram Graywater Barrage Tyrant Bartolom del Presidio Beetle-Headed Merchants Blazing Hellhound Bloated Processor Blood Bairn Blood Host Blood-Chin Fanatic Bloodbriar Bloodmist Infiltrator Body Dropper Bogardan Dragonheart Boilerbilges Ripper Boneyard Desecrator Bontu the Glorified Bound by Moonsilver Brawl-Bash Ogre Brion Stoutarm Broadside Bombardiers Bushmeat Poacher Butcher of the Horde Caesar, Legion's Emperor Cartel Aristocrat Catapult Captain Cavalier of Night Chained Brute Chipper Chopper Chronomancer Cirith Ungol Patrol Cleaver Skaab Comet Crawler Commissar Severina Raine Compleated Huntmaster Corpse Blockade Cutthroat Centurion Dai Li Censor Demon of Fate's Design Demonlord of Ashmouth Denethor, Ruling Steward Dina, Essence Brewer Dina, Soul Steeper Dire Fleet Warmonger Disciple of Bolas Disciple of Freyalise Disturbing Mirth Diversion Specialist Dreadmalkin Dreadmobile Eater of Hope Echo of Death's Wail Ecstatic Awakener Elder Arthur Maxson Elite Headhunter Enigmatic Incarnation Erebos, Bleak-Hearted Evereth, Viceroy of Plunder Extricator of Sin

The 1995 cards are in high demand partially because of their name, which refers to their initial copyright year instead of their year of release (1997)
Bloodline Necromancer brings your dead vampires back for another feast
If you were playing fair, there was no way you could compete with that if the deck pulled it off and many games were won simply due to a willingness to play a card this powerful, allowing such decks to win long games they would otherwise be lost in
Her least favorite is grated yams, a dish often known as Tororo