+2: Discard up to two cards, then draw that many cards.−2: Sacrifice an artifact. If you do, return target artifact card from your graveyard to the battlefield.−10: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step."Daretti, Scrap Savant...
Players can't gain life.Damage can't be prevented.All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)
Converge — Crystalline Crawler enters with a +1/+1 counter on it for each color of mana spent to cast it.Remove a +1/+1 counter from Crystalline Crawler: Add one mana of any color.: Put a +1/+1 counter on Crystalline Crawler.
Each instant and sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.: Target artifact creature gains deathtouch and lifelink until end of turn.
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.
Artifact spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting an artifact spell pays for or one mana of that creature's color.)