In general, if combat looks great for you, I'd wait to roll until after combat
Reflection of Kiki-Jiki can repeatedly make copies of your most relevant creatures, usually threats that have an ETB or death trigger
The problem is that you cannot afford to dilute your deck of threats to play a bunch of reactive cards
Dont forget the hybrid approach, start with a precon, then slowly upgrade it into your own unique brew
Urza, Lord High Artificer Urza, Lord High Artificer was the first card to depict the ancient well-known planeswalker on his own
Announced as part of Pokmon Day 2024s slate of announcements, Pokmon Trading Card Game Pocket is published by Creatures, Inc