Just some silly idears

[Nocromontodos]

The hand starts with "Apostate" (or use Sin to add "Apostate" to the hand). Then banish "Apostate" and "Heretic" to bring "Skull" onto the field. At this time, the effect of "Heretic" will send "Archfiend Heiress" to the grave, and "Archfiend Heiress" will search for "Blasphemer". Banish "Blasphemer" to pull 1 Fiend LV8 on the field, destroy 1 card from 2 fields, and find any "Krime" card. Then, because you already have "Skull" LV6 and "Blasphemer" LV6, you can Synchro summon "Start". Since "Skull" leaves the field, you can drag 2 banished Fiend monsters, from the Graveyard, in your hand onto the field.

Edited March 13, 2024 by Nocromontodos

[-GalexyVoids-]

Cool.

[ProBuddy IDK]

I like this deck continue to work on it

[Nocromontodos]

On 3/13/2024 at 6:23 PM, Nocromontodos said:

The hand starts with "Apostate" (or use Sin to add "Apostate" to the hand). Then banish "Apostate" and "Heretic" to bring "Skull" onto the field. At this time, the effect of "Heretic" will send "Archfiend Heiress" to the grave, and "Archfiend Heiress" will search for "Blasphemer". Banish "Blasphemer" to pull 1 Fiend LV8 on the field, destroy 1 card from 2 fields, and find any "Krime" card. Then, because you already have "Skull" LV6 and "Blasphemer" LV6, you can Synchro summon "Start". Since "Skull" leaves the field, you can drag 2 banished Fiend monsters, from the Graveyard, in your hand onto the field.

Ok, I have some updates for this,

New starter

You can special summon this card and 1 Fiend-type LV4 or lower from your deck but banish it and this card when it leaves the field. When this card effect has been negated: banish this card and if you do, send 1 "Krime" or "Archfiend" spell/trap card from your deck to GY and apply this effect becomes that card's effect when that card is activated. During the end phase: if this card is banished, add 1 "Krime" or "Archfiend" spell/trap card in your GY to your hand.
{This card is always treated as an Archfiend card.)

This.....I don't know. the best target is "Mundus" of course

When this card is activated, you can target 1 "Krime" monster you control: this card cannot be banished while that target card is still on the field, While this card is face-up on the field: "Krime" or "Archfiend" monster effect with level lower than the target card cannot be negated.
{This card is always treated as an Archfiend card.)

big BUG guy.

When this card is normal or special summoned, you can select 1 "Krime" or "Archfiend" card from your deck and either set it on the field or send it to GY. Once per turn (Quick Effect): Banished monsters from your GY that include 1 or more Tuner monster(s), synchro summoned 1 Synchro monster (Ignore its summon condition) with Levels equal or lower total level of cards banished by this effect. Banish that synchro monster at the end phase of that turn.
{This card is always treated as an Archfiend card.)

Update

(Once per turn) You can banish this card (from your hand or field) and 1 LV 4 or lower "Krime" or "Archfiend" monster from your deck: Syncho summon 1 Fiend-type monster from your Extra-deck. If this card was banished: add 1 "Krime" or "Archfiend" card from your deck to your hand. This card is unaffected by the next card effect chain after this card.
{This card is always treated as an Archfiend card.)

If this card was banished: You can send 1 Fiend-type monster from your deck or your hand to GY, then add 1 Spell/Trap with "Krime" or "Archfiend" in its text to your hand. Once per turn: you can discard this card, special summon 1 LV 8 or lower Fiend-type monster from your deck but destroy it during the end phase. During the end phase, if this card was banished: Add this card to your hand. 
{This card is always treated as an Archfiend card.)

When this card is special summoned, you can add 1 "Krime" or "Archfiend" card from your deck to your hand. You can only use effect (1) and (2) of this card Once per turn: 
(1) (Quick Effect) You can banish this card (from your hand or field) and 1 Fiend-type monster in your GY, special summon 1 LV 8 or lower Fiend-type monster except "Bonsta, blasphemer of Krime" from your deck.
(2) If this card is banished: You can Special Summon this card but its Level becomes 6 and if you do: Destroy 1 card on your hand (you choose) and your opponent's hand (at random).
{This card is always treated as an Archfiend card.) 

Either special summon 1 LV4 or lower "Krime" or "Archfiend" monster from your deck or add it to your hand. When this card effect is negated, banish 2 LV4 or lower "Krime" or "Archfiend" monsters from your deck: Synchro summons 1 Fiend-type monster from your Extra deck with the level equal or lower total level of 2 monsters banished by this card effect.
{This card is always treated as an Archfiend card.)

1 Tuner + 1+ non-Tuner Fiend monsters
When this card is special summoned: your opponent cannot activate card(s) effect on their hand and GY for the rest of this turn. Once per turn, you can destroy 1 card on your hand or field to add 1 "Krime" or "Archfiend" card to your hand. If this card leaves the field, special summon 2 Fiends LV 4 or lower with different names that were banished, on your hand or GY but shuffle them back to the deck when they leave the field. 
{This card is always treated as an Archfiend card.)

1 Tuner + 1+ non-Tuner monsters
You can banish 2 fiend-type monsters in your GY whose combined level equals or exceeds this card level to synchro summon this card. When this card is Special Summoned: your opponent flips all card(s) they control face-down then shuffles all face-up card(s) they control to the deck. (Your opponent cannot activate card(s) effect respond to this card special summon). While there are "Krime" or "Archfiend" Card(s) on the field: This card becomes unaffected by the opponent card(s) effect and cannot be tributed. Your opponent can only choose or select this card for attack or Card(s) effect. 
{This card is always treated as an Archfiend card.)