Valakut Awakening // Valakut Stoneforge

The front half resolves the oldest problem in card selection: how do you dig without spending your hand to do it? The answer here is to make the surplus itself the fuel. Bottom as many cards as you like, then draw that many plus one, so the spell cycles your dead weight into fresh gas and replaces itself in the process. This is bottom-of-library filtering, not discard, so it feeds nothing that wants cards in the graveyard; the cut cards go back into the deck to be seen again. The net on your hand size is zero (the spell trades itself for the plus-one), but the transformation is the point: a fistful of flooded lands becomes a fistful of live cards, and the instant-speed clause lets you do it in the end step, dumping the excess after you know what the turn gave you and refilling with mana still up.

The modal back is what makes running the effect defensible at all. Because every copy is also a red source, the card is never a dead draw: short on lands, it comes down tapped and taps for mana; long on lands, it launders them into new cards. That split is the whole pitch. A deck can slot the filtering at a density it would never justify for a pure instant, because the failure state (drawing it with no surplus to churn) is a color source rather than a blank in hand.