Settle the Wreckage [Ixalan Promos] SPA Maestro ensamblador I have mixed feelings

I have mixed feelings

{R}: Shivan Dragon gets +1/+0 until end of turn

Set: Modern Masters 2017 Type: Creature — Merfolk Wizard Common Cost: {1}{U} When Augur of Bolas enters the battlefield

King Darien's breath crystallized and fell to the frozen battlefield

Set: Mirrodin Type: Artifact Rare Cost: {3} {2}{U}

Settle the Wreckage [Ixalan Promos] SPA Maestro ensamblador I have mixed feelingsSet: Ixalan Promos Type: Instant Rare Cost: {2}{W}{W} Exile all attacking creatures target player controls. That player may search their library for that many basic land cards, put those cards onto the battlefield tapped, then shuffle their library.