Cormela, Glamour Thief | Saw in Half | Victimize

(and two other cards)

Activate
Yahenni by sacrificing
Rapacious Dragon.
Activate
Cormela by paying ({1} magic symbol) and tapping it, adding ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) that can only be spent to cast instant and/or sorcery spells.
Cast
Saw in Half by paying ({2} magic symbol) ({B} magic symbol) , destroying
Cormela and creating two token copies of it with base power equal to half the destroyed creature's power and base toughness equal to half the destroyed creature's toughness, rounding up each time.
Put one of the
Cormela tokens into your graveyard due to the legend rule.
The
Cormela that died in step 3 and the
Cormela that died in step 4 each trigger, returning
Victimize and
Saw in Half from your graveyard to your hand.
Activate the
Cormela token by paying ({1} magic symbol) and tapping it, adding ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) that can only be spent to cast instant and/or sorcery spells.
Cast
Victimize by paying ({2} magic symbol) ({B} magic symbol) , causing you to sacrifice the
Cormela token and return
Cormela and
Rapacious Dragon from your graveyard to the battlefield.
Put the
Cormela token into your graveyard due to the legend rule.
Rapacious Dragon and the token
Cormela trigger.
Resolve the
Rapacious Dragon trigger, creating two Treasure tokens.
Resolve the
Cormela trigger, returning up to one instant or sorcery from your graveyard to your hand.
Activate the Treasures by tapping and sacrificing them, adding ({2} magic symbol) .
Repeat.