Afterwards, the turn player adds their optional effects in any order, and finally the opponent adds their optional effects in any order
Competitive Player: Research the meta and decide which deck you want to go for
This means Accesscode will oftentimes be hitting the field with 4300 or 5300 attack points
Considering every other card is underwhelming when placed next to "Valkyria, Guardian of the Spell Force", I suppose this is alright, and considering the Costs of Discarding will prime you to Special Summon the Dark Magicians, there's not too much to complain about, though they're mostly Dead Ends, completely overshadowed by the "Valkyria" line
shutting off Dimensional Prison & Bottomless Trap Hole
Here's how it works: Monsters Levels 1-4: Can be summoned without Tribute Monsters Levels 5 and 6: Requires 1 Tribute to Summon Monsters Levels 7-12: Requires 2 Tributes to Summon To Tribute a Monster means to send it to the graveyard as a price of some sort