And at first glance the Initiative-dungeon does not necessarily look very powerful or interesting
If you have copies of Thoughtseize, Inquisition of Kozilek, Liliana of the Veil, or Slaughter Pact, feel free to throw them in the deck, even if you don't have a full playset yet
Destroy 1 Supreme King Z-ARC you control, and if you do, Special Summon 1 Odd-Eyes monster or 1 LIGHT Supreme King Z-ARC from your Deck or Extra Deck, ignoring its Summoning conditions
Land cards usually make up 35-40% of an MTG deck, and players can put them onto the battlefield and generate mana from them to play other card types
They are more than powerful enough without stat boosts, and Crucible of Fire costs four mana, which is already costly in a deck that runs a lot of high mana value creatures
There are plenty of cards that fight, the only problem is you also need enough big creatures that can fight