At the beginning of your upkeep, you may put a verse counter on this enchantment. {2}{R}, Sacrifice this enchantment: It deals X damage to any target, where X is the number of verse counters on this enchantment.
If you would draw a card, you may instead choose land or nonland and reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and put all other cards revealed this way on the bottom of your library in any order.
At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.