Beast Whisperer Whenever you cast a creature spell, draw a card Elder Gargaroth Vigilance, reach, trample Whenever Elder Gargaroth attacks or blocks, choose one Create a 3/3 green Beast creature token You gain 3 life Draw a card Ohran Frostfang Attacking creatures you control have deathtouch Whenever a creature you control deals combat damage to a player, draw a card Regal Force When Regal Force enters the battlefield, draw a card for each green creature you control Runic Armasaur Whenever an opponent activates an ability of a creature or land that isnt a mana ability, you may draw a card Toski, Bearer of Secrets This spell cant be countered Indestructible Toski, Bearer of Secrets attacks each combat if able Whenever a creature you control deals combat damage to a player, draw a card Non-Budget Enchantment Decks If you are playing an enchantment-focused deck, these are nearly mandatory inclusions to ensure you green card draw strategy

I do think a focus on death triggers makes sense, so maybe Teysa Karlov and some Humans that replace themselves like Doomed Traveler, Hunted Witness and Imperious Oligarch could help you make a decent General Kudro deck
Rad counters give your proliferate spells new purpose, and there are tons of ways to take advantage of milling everyone
The ability to pay 2 additional mana any number of times and get that many +1/+1 counters is found on a lot of these creatures, but the other options have additional keyword abilities, making them stronger creatures
Sazh himself can call up a vital land or Bird card, while Bartz can make your flock gang up on a particular enemy when he enters
Determining rarity on these older cards can be tricky, so be sure to do your research before passing off Lion's Eye Diamond as a common