I like to color the cell backgrounds to make it easier to tell them apart when Im entering the raw data
Card Set(s) -PARAMOUNT WAR- [OP02] CARD VIEW OP02-121 | SEC | CHARACTER Kuzan Attribute Special Block icon 1 Effect [Your Turn] Give all of your opponent's Characters 5 cost
When taking an additional combat phase you go through all of the normal steps in a combat phase: Beginning, Declaring attackers, Declaring blockers, Combat damage, and End of combat
I dont think theres a huge need to cast Radiant Flames out of the sideboard for three so Im not playing a third color of mana, but if there is a good reason, you could get by shaving a Forest for a Canopy Vista which is fetchable by all of the lands
You can do something similar with Warp cards and a sacrifice outlet
If your playgroup regularly mixes artifacts and enchantments, this provides an excellent 2-for-1