@Ignister

The goal is to bring out Arrival with ideally at least 5000 ATK; it is unaffected by other cards' effects, which would most probably win you the game unless they have cards like Kaiju that could take it off the field through atypical means.

There are many routes to the boss monster; however, the most practical sequence is Dark Infant (search out Ignister AILand) >> Cyberse Wicckid (search out Bururu) >> Splash Mage (don't use effect for the meantime) >> Transcode Talker (summon Splash Mage then use its effect) >> Dark Templar (optional, depending on availability of elements required) >> Arrival (with ideally at least 5000 ATK). Of course, other cards (@Ignister effect monsters, resurrection spells, searching spells) are omitted in the sequence due to the indeterminate game state.

The logic behind the sequence is that the field spell Ignister AILand only allows you to special summon when there are no monsters on your Main Monster zone. These link monsters serve as buffers, which allow you to special summon @Ignister effect monsters from your hand or through spells (FAIghting Spirit, AIdle Reborn). You have to keep track which @Ignister monsters have activated their effects due to the once per turn restriction.

Also, you must keep track of the elements of your summoned monsters in order to fulfill the requirements for Arrival. If you have Transcode Talker (Earth), Splash Mage (Water), and another monster summoned by Splash Mage's effect while you have Doshin (Earth) and/or Hiyari (Water) on your hand, you can go for Dark Templar (Dark) and use its effect along with resurrection spells (FAIghting Spirit, AIdle Reborn) or a search spell (AI Meet You) in order to bring out 5 different elements from the GY or hand. For emergencies, use Link Disciple (Light) to replace a redundant element.

When Link summoning, don't forget to start from the effect monsters all the way to the Link monsters in ascending Link rating; starting from the Link-3 Transcode Talker or Dark Templar will only allow you to select at most three other materials since Arrival is a Link-6 (This is for Dueling Nexus mechanics).

If you feel like you can't bring out 5000 ATK Arrival due to the lack of resources, you can choose to go for other @Ignister monsters (Fire Phoenix, Light Dragon, etc.) or Accesscode Talker for board cleaning.

If there are other useful cards that were not included here, please leave a comment so that I can broaden my horizons through the spirit of learning, and perhaps grief my opponents with a stronger deck. Thank you for viewing.