How it works
Prerequisites
- There are three removable counters among creatures you control excluding the first three +1/+1 counters on Mossborn Hydra.
- You control at least two enchantments.
Steps
- 1Activate Serra's Sanctum by tapping it, adding at least .
- 2Activate Squandered Resources by sacrificing Serra's Sanctum, adding
- 3Activate Tayam by paying and removing three counters from creatures you control, causing you to mill three cards and return Serra's Sanctum from your graveyard to the battlefield.
- 4When Serra's Sanctum enters, Mossborn Hydra triggers, doubling the number of +1/+1 counters on it.
- 5Repeat.
Commander brackets
In which brackets is this combo allowed, per Spellbook's Powerful tier?
Spellbook classifies this as Powerful — not for these brackets.