Sealed product stock from that era is virtually nonexistent
Graveyard Syngery Since a fetch land sacrifices itself as a cost for its ability, this means a land can be effortlessly put into your graveyard without hassle
(This is hypothetical, and not my actual opinion.) In this case, I'd also start my draft planning to go for Jeskai Tempo
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Buy This Card Notes and Rules Information for Silverquill, the Disputant: Casualty N means "As an additional cost to cast this spell, you may sacrifice a creature with power N or greater." and "When you cast this spell, if a casualty cost was paid for it, copy it
For those who prefer a combo-oriented style of play, Kykar decks are also well suited to cards with Storm (spells like Empty the Warrens that copy themselves for every other spell cast before them on the same turn) and cards that reward you for playing lots of spells like Aetherflux Reservoir, to say nothing of the other independent combos that synergize with Kykar like Elsha of the Infinite + Senseis Divining Top
It is especially powerful in decks that focus on taking extra turns, as it can allow you to draw a large number of cards and put a lot of pressure on your opponents