Lota, the Succession

At the beginning of your upkeep, create a 2/1 green snake creature token.
If you control four or more other creatures, Lota, the Succession has deathtouch.
{b/g}, {t}, Sacrifice another creature: Add X mana in any combination of colors, where X is the sacrificed creature's power. Spend this mana only to cast creature spells or activate abilities of creatures.