Rielle, the Everwise

The trick most discard-payoffs pull is refilling your hand after you've spent it; this one pays you before the loss registers. The second ability catches the first discard each turn, whatever the source (a rummage, a channel cost, a loot from a cantrip), and draws you back to even. Both halves are live the moment she lands: the +1/+0 is a static ability keyed to your graveyard, so a well-stocked yard makes her a threat on arrival, and the draw trigger fires the same turn if you have a discard outlet or a spell with a discard cost to feed it. Keying the body to instant and sorcery cards in the yard rather than hand size shows this was built as a graveyard-density payoff: every spell you cast feeds a yard that both grows the clock and stocks the card that turns discard into card advantage. The 0/3 base is the honest part of the deal, a body that sits inert on an empty board and dies to almost any removal. She is less an engine you build toward than a multiplier you drop into an engine already running, converting the loot effects a spellslinger deck was casting anyway into raw cards and a growing threat. The design lives entirely in that "first time each turn" clause: it makes a single large discard the correct line, rewarding one big pitch over a trickle.