mtg card previews Magic: The Gathering's New Expansion Wants You to Behold Some Dragons MTG Duskmourn House of Horror:

You could choose to assign 2 damage to me (the extra damage that my 3/3 can't block), but in that case your 5/5 doesn't actually deal any excess damage , and your Rith won't trigger

So you are giving every color a mana dork in a set that features affinity, which means you are getting that Broodstar even quicker

Vanguard, Duel Masters, Panini soccer cards, and many more, so you won't run out of space

All you need is a way to discard Summon: Knights of Round, and Terra can resurrect it just fine

Dream Twist, Mulch, Deranged Assistant, Forbidden Alchemy, Armored Skaab, and Civilized Scholar are typically the best options but Ghoulcaller's Bell can also be a fine addition