Why not just let it through
2021-02-05 If Quakebringer is on the battlefield at the beginning of your upkeep, its ability will trigger even if its no longer a Giant and you dont control another Giant
While Amano-Iwato is on the field, monsters cannot activate their effects, except for Spirit monsters , which makes it nearly impossible for most decks to thrive
From there, you can create creature tokens based on the number of Food tokens you tap as part of this ability, a fantastic addition to decks that focus on Food tokens or creature swarms
This keeps Tymna active without exposing key threats to removal
Bloodfeather Phoenix costing two mana might help bump the deck up to a slightly higher curve, but Squee, Dubious Monarch and Thundering Raiju were doing that already