Mindshrieker [ISD - 67] Language:English You may cast a card

You may cast a card with converted mana cost 4 or less from your hand without paying its mana cost

This ability triggers only if Quakebringer is on the battlefield or if Quakebringer is in your graveyard and you control a Giant

Rules Text Contains: All artifacts have “At the beginning of your upkeep

" —Braids

Mindshrieker [ISD - 67] Language:English You may cast a cardRarity: R #: 67 Creature Type or Sub Type: Creature Spirit Bird P: 1 T: 1 Rules Text Contains: Flying 2: Target player puts the top card of his or her library into his or her graveyard. Mindshrieker gets +X +X until end of turn, where X is that card's converted mana cost.