Let's first review the mechanics behind background enchantments in Magic
and Krovikan Horror to turn this graveyard-filler into a massive boon
Having more counters on more controlled creatures allows Tidus to more readily proc his " Cheer " ability, allowing him to Proliferate and draw, though this can only occur once per turn
Evoking Fury and bringing it back with cards like Not Dead After All means you still get the damage trigger while ending up with the creature on the battlefield
If your opponents arent careful, you can return every Creature to hand on the following turn, and so on
Blue Fairy, on the other hand, is better because she is inkable, evasive and feeds into a theme with more support: there are approximately 0.7 Floodborn per booster