Sea SniddHow it works & interactions with other cards

Mastering the Terrain

Sea Snidd has an activated ability that allows it to target a land and turn it into a basic land type of your choice (Plains, Island, Swamp, Mountain, or Forest). This effect lasts until the end of the turn. When a land gains a basic land type this way, it loses all other land types and its original mana abilities, but it gains the intrinsic mana ability associated with the new basic land type.

Step-by-Step Resolution

First, you activate the ability by tapping Sea Snidd and selecting a target land. Second, as the ability resolves, you choose one of the five basic land types. The land then becomes that type. It is important to note that the land keeps its name and any supertypes (like Legendary or Snow), but its text box is effectively replaced by the tap ability of the chosen basic land type until the cleanup step.

Strategic Timing and Pitfalls

A common mistake is thinking Sea Snidd can change a creature's type; it only affects lands. To effectively 'color-screw' an opponent, you should use Sea Snidd during their upkeep or at the beginning of their main phase to ensure their specific utility lands or colors are unavailable for the rest of the turn. Remember, this does not remove the 'Nonbasic' status of a land; it only changes its land types.

Interaction examples

Fixing Your Mana

Solemn Simulacrum

If you used Solemn Simulacrum to put a basic Plains onto the battlefield tapped, but you desperately need Blue mana to cast a spell this turn, you can tap Sea Snidd to turn that Plains into an Island. This allows you to generate the required Blue mana immediately, bypassing the limitations of your current land count.

Neutralizing Utility Lands

Roaming Throne

If your opponent controls a powerful utility land that produces colorless mana, you can tap Sea Snidd to turn it into a Forest. This removes the land's original abilities, potentially preventing them from having the mana needed to pay for the Ward {2} cost on your Roaming Throne when you target it with a spell later in the turn.