Try the Pokemon card maker from MockoFun
Consider its card type, any effects that modify when you could cast it (such as flash) and any other effects that stop you from casting it (such as from Meddling Mage's ability) to determine if and when you can do this
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Both of these enchantments shut down an entire metagame of card drawing
The alternative commander, [[Elsha, Threefold Master]], doesnt really synergies with [[Shiko and Narset, Unified]]
A player that intends to exploit Norin the WaryNorin the Wary and his frequent enters-/leaves-the-battlefield shenanigans can be found in Brackets 1-4, depending on how exploitative the player intends to play