mtg guildpact booster box / Guilds Of Ravnica Occult rituals must be stopped and alien creatures destroyed before the Ancient Ones make our world their ruined dominion Magic the Gathering Guildpact Booster

When this card is Summoned, target Spell/Trap cards your opponent controls up to the number of cards in your opponen't's hand, and activate the following effects: * If the target is face-down, your opponent cannot activate the targeted card while this card is face-up on the field

If they just pass, you can Summon Loading

Slashin' n' Thrashin' Bruiser Bro Destroy this face-up card if there are non-Monster Cards face-up in your Spell & Trap Card Zone or in your Graveyard

Urzas abilities include reducing the cost of artifact, instant, and sorcery spells by two, creating two 1/1 creature tokens, and giving your artifacts and planeswalkers indestructible before destroying everything else.

You can even activate the card draw ability after Iron Spider is tapped to spread +1/+1 counters, which is a nice touch considering how many creatures with two activated abilities need to tap for both of them