Create a token that's a copy of target creature you control.Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs. Then exile this card.)
Choose a card name. Search target opponent's graveyard, hand, and library for up to four cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.
LifelinkWhen Blood Operative enters, you may exile target card from a graveyard.Whenever you surveil, if Blood Operative is in your graveyard, you may pay 3 life. If you do, return Blood Operative to your hand.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)When Venerated Loxodon enters, put a +1/+1 counter on each creature that convoked it.
Undergrowth — Target creature gets -X/-X until end of turn, where X is the number of creature cards in your graveyard. If that creature would die this turn, exile it instead.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)When Conclave Tribunal enters, exile target nonland permanent an opponent controls until Conclave Tribunal leaves the battlefield.
Whenever you cast an instant or sorcery spell, put a charge counter on Firemind's Research., Remove two charge counters from Firemind's Research: Draw a card., Remove five charge counters from Firemind's Research: It deals 5 damage to any target.
Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.): Boros Challenger gets +1/+1 until end of turn.
Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)