Drain Power [Beta Edition] 66 You may cast a spell

You may cast a spell with mana value 5 or less from your hand without paying its mana cost

Whenever you cast an enchantment spell

Goblin Nabob from your graveyard to your hand

Set: Onslaught Type: Creature — Goblin Rarity: Rare Cost: {2}{R} Goblin Sharpshooter doesn't untap during your untap step

Enchanted player can't activate abilities that aren't mana abilities or loyalty abilities

Drain Power [Beta Edition] 66 You may cast a spellSet: Beta Edition Type: Sorcery Rarity: Rare Cost: {U}{U} Target player activates a mana ability of each land they control. Then that player loses all unspent mana and you add the mana lost this way.