Shadowmage Infiltrator It isnt often that a card printed in 2001 makes our hot list, but this card is having a massive resurgence thanks to the Premodern format
(For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.) Hup, two, three, four, Dunno how to count no more. Illustrated by Scott M
With a potential 30th Anniversary set coming soon, these cards may not be this valuable for long
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
The three sideboard cards I opted for in 2021 were 1 Clear and 2 Gilded Light
This plays right into the expend mechanic from the main set, which encourages you to spend at least 4 mana each turn