mtg as an additional cost discard a card magic cards 1x Waste Away - Foil Torment NM-Mint, English Draw three cards. A free outlet for sacrifice

If another player gains control of your commander and attacks with it while Endless Ranks of HYDRA is in your graveyard, the last ability will trigger

Some decks run a number of mana rocks to help their sources and dont really care about how many lands they have

(They're artifacts with ", , Sacrifice this token: You gain 3 life.") Sacrifice a Food: Until end of turn, target creature you control assigns combat damage equal to its toughness rather than its power

Or are you just into good honest +1/+1 counter plays

Of the "Expertise" cycle of Aether Revolt cards, this one is the most popular in Commander, where it allows green decks to draw cards while adding to the board

Cards like Pearl-Ear, Imperial Advisor are another potential solution, but they can only help so much