Populate lets you choose from only your creature tokens
The communal aspect of drawing cards can be turned to your advantage, with knowledge of opponents' upcoming plays and planning accordingly
Put a +1/+1 counter on each creature you control whose name begins with either of the chosen letters
To support it without relying on it, I prioritized artifact mana acceleration like Thran Dynamo, Basalt Monolith, and all the artifact creatures I could get
They essentially make all those less rare Pokmon a lot more formidable
This also proves to be effective when combined with Latias Ex's Skyliner Ability, as Ancient Pokemon are all Basic, making them able to attack on a turn, then retreat at no cost for Koraidon to sweep on the next