Create a 4/4 red Giant creature token. At the beginning of your next upkeep, pay {4}{R}. If you don’t, you lose the game.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature’s color.) Destroy all nontoken creatures.
Suspend 2—{1}{W} (Rather than cast this card from your hand, pay {1}{W} and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) Return all enchantment cards from your graveyard to the battlefield. (Auras with nothing to enchant remain in your graveyard.)
Whenever you cast an instant or sorcery spell, create an X/X colorless Construct artifact creature token, where X is that spell’s mana value. {3}{U}{U}, Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand. Activate only if you control six or more artifacts
{T}: Add {C}. {1}{R}, {T}: Put a pressure counter on Hellion Crucible. {1}{R}, {T}, Remove two pressure counters from Hellion Crucible and sacrifice it: Create a 4/4 red Hellion creature token with haste. (It can attack and {T} as soon as it comes under your control.)
At the beginning of each player’s first main phase, if Blinkmoth Urn is untapped, that player adds {C} for each artifact they control.
Pack Rat’s power and toughness are each equal to the number of Rats you control. {2}{B}, Discard a card: Create a token that’s a copy of Pack Rat. */*
Vigilance, menace, lifelink Whenever Kroxa and Kunoros enters or attacks, you may exile five cards from your graveyard. When you do, return target creature card from your graveyard to the battlefield. 6/6
Master of Etherium’s power and toughness are each equal to the number of artifacts you control. Other artifact creatures you control get +1/+1. */*
{2}, {T}: Exile target creature you control. At the beginning of your upkeep, you may sacrifice Safe Haven. If you do, return each card exiled with Safe Haven to the battlefield under its owner’s control.
Rielle, the Everwise gets +1/+0 for each instant and sorcery card in your graveyard. Whenever you discard one or more cards for the first time each turn, draw that many cards. 0/3
Bojuka Bog enters tapped. When Bojuka Bog enters, exile target player’s graveyard. {T}: Add {B}.